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12202201200020 = 2251397483830341
BaseRepresentation
bin1011000110010000101111…
…0111100011010110010100
31121012112000101022100001112
42301210023313203112110
53044410102001400040
641541340331314152
72366402630604206
oct261441367432624
947175011270045
1012202201200020
113984a19515177
121450a505ab958
136a687ca70680
14302838170776
1516261974c365
hexb190bde3594

12202201200020 has 48 divisors (see below), whose sum is σ = 27880239627408. Its totient is φ = 4458980413440.

The previous prime is 12202201199989. The next prime is 12202201200023. The reversal of 12202201200020 is 2000210220221.

12202201200020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1584809067664 + 10617392132356 = 1258892^2 + 3258434^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12202201199968 and 12202201200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202201200023) 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, 241889951 + ... + 241940390.

It is an arithmetic number, because the mean of its divisors is an integer number (580838325571).

Almost surely, 212202201200020 is an apocalyptic number.

12202201200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202201200020 is an abundant number, since it is smaller than the sum of its proper divisors (15678038427388).

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

12202201200020 is a wasteful number, since it uses less digits than its factorization.

12202201200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483830460 (or 483830458 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12202201200020 its reverse (2000210220221), we get a palindrome (14202411420241).

The spelling of 12202201200020 in words is "twelve trillion, two hundred two billion, two hundred one million, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 97 130 194 260 388 485 970 1261 1940 2522 5044 6305 12610 25220 483830341 967660682 1935321364 2419151705 4838303410 6289794433 9676606820 12579588866 25159177732 31448972165 46931543077 62897944330 93863086154 125795888660 187726172308 234657715385 469315430770 610110060001 938630861540 1220220120002 2440440240004 3050550300005 6101100600010 12202201200020