113221220232 has 32 divisors (see below), whose sum is σ = 292813502400. Its totient is φ = 36439013184.

The previous prime is 113221220201. The next prime is 113221220269. The reversal of 113221220232 is 232022122311.

It is a super-2 number, since 2×113221220232² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113221220199 and 113221220208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81336388 + ... + 81337779.

It is an arithmetic number, because the mean of its divisors is an integer number (9150421950).

Almost surely, 2^113221220232 is an apocalyptic number.

113221220232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113221220232 is an abundant number, since it is smaller than the sum of its proper divisors (179592282168).

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

113221220232 is a wasteful number, since it uses less digits than its factorization.

113221220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162674205 (or 162674201 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 113221220232 its reverse (232022122311), we get a palindrome (345243342543).

The spelling of 113221220232 in words is "one hundred thirteen billion, two hundred twenty-one million, two hundred twenty thousand, two hundred thirty-two".