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12220200200020 = 2251961737221743
BaseRepresentation
bin1011000111010011110010…
…1100010010011101010100
31121021020110202121021100011
42301310330230102131110
53100203432222400040
641553514340330004
72400610644562651
oct261647454223524
947236422537304
1012220200200020
11399161548428a
1214544343a3904
136a848aa10a27
143036647bac28
15162d1e9a93ea
hexb1d3cb12754

12220200200020 has 96 divisors (see below), whose sum is σ = 27832023636480. Its totient is φ = 4492501263360.

The previous prime is 12220200200009. The next prime is 12220200200023. The reversal of 12220200200020 is 2000200202221.

12220200200020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220200200023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1918732 + ... + 5303011.

It is an arithmetic number, because the mean of its divisors is an integer number (289916912880).

Almost surely, 212220200200020 is an apocalyptic number.

12220200200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220200200020 is an abundant number, since it is smaller than the sum of its proper divisors (15611823436460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12220200200020 is a wasteful number, since it uses less digits than its factorization.

12220200200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221905 (or 7221903 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 12220200200020 its reverse (2000200202221), we get a palindrome (14220400402241).

The spelling of 12220200200020 in words is "twelve trillion, two hundred twenty billion, two hundred million, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 61 73 76 95 122 146 190 244 292 305 365 380 610 730 1159 1220 1387 1460 2318 2774 4453 4636 5548 5795 6935 8906 11590 13870 17812 22265 23180 27740 44530 84607 89060 169214 338428 423035 846070 1692140 7221743 14443486 28886972 36108715 72217430 137213117 144434860 274426234 440526323 527187239 548852468 686065585 881052646 1054374478 1372131170 1762105292 2108748956 2202631615 2635936195 2744262340 4405263230 5271872390 8370000137 8810526460 10016557541 10543744780 16740000274 20033115082 32158421579 33480000548 40066230164 41850000685 50082787705 64316843158 83700001370 100165575410 128633686316 160792107895 167400002740 200331150820 321584215790 611010010001 643168431580 1222020020002 2444040040004 3055050050005 6110100100010 12220200200020