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2220100002220 = 2254713731720181
BaseRepresentation
bin100000010011101000010…
…001011010000110101100
321212020110120211102222011
4200103220101122012230
5242333231100032340
64415522211531004
7316253101440442
oct40235021320654
97766416742864
102220100002220
117865a2634171
122ba32abb9a64
1313147bba2989
147964c248b92
153cb3ad730ea
hex204e845a1ac

2220100002220 has 48 divisors (see below), whose sum is σ = 4764876617088. Its totient is φ = 868512001280.

The previous prime is 2220100002199. The next prime is 2220100002227. The reversal of 2220100002220 is 222000010222.

It is a self number, because there is not a number n which added to its sum of digits gives 2220100002220.

It is not an unprimeable number, because it can be changed into a prime (2220100002227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430530 + ... + 2150710.

It is an arithmetic number, because the mean of its divisors is an integer number (99268262856).

Almost surely, 22220100002220 is an apocalyptic number.

2220100002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220100002220 is an abundant number, since it is smaller than the sum of its proper divisors (2544776614868).

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

2220100002220 is a wasteful number, since it uses less digits than its factorization.

2220100002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721610 (or 1721608 counting only the distinct ones).

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

Adding to 2220100002220 its reverse (222000010222), we get a palindrome (2442100012442).

The spelling of 2220100002220 in words is "two trillion, two hundred twenty billion, one hundred million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 1373 2746 5492 6865 13730 27460 64531 129062 258124 322655 645310 1290620 1720181 3440362 6880724 8600905 17201810 34403620 80848507 161697014 323394028 404242535 808485070 1616970140 2361808513 4723617026 9447234052 11809042565 23618085130 47236170260 111005000111 222010000222 444020000444 555025000555 1110050001110 2220100002220