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12220233121320 = 23357219109382681
BaseRepresentation
bin1011000111010011111010…
…1001110111111000101000
31121021020120001112211212120
42301310332221313320220
53100204014134340240
641553521514111240
72400611524446300
oct261647651677050
947236501484776
1012220233121320
11399163201a574
12145444341b520
136a84947995a3
14303668d0a600
15162d2280dad0
hexb1d3ea77e28

12220233121320 has 192 divisors, whose sum is σ = 44890652692800. Its totient is φ = 2646185794560.

The previous prime is 12220233121277. The next prime is 12220233121331. The reversal of 12220233121320 is 2312133202221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54579621 + ... + 54803060.

It is an arithmetic number, because the mean of its divisors is an integer number (233805482775).

Almost surely, 212220233121320 is an apocalyptic number.

12220233121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220233121320 is an abundant number, since it is smaller than the sum of its proper divisors (32670419571480).

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

12220233121320 is a wasteful number, since it uses less digits than its factorization.

12220233121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109382728 (or 109382717 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12220233121320 its reverse (2312133202221), we get a palindrome (14532366323541).

The spelling of 12220233121320 in words is "twelve trillion, two hundred twenty billion, two hundred thirty-three million, one hundred twenty-one thousand, three hundred twenty".