113120221220 has 48 divisors (see below), whose sum is σ = 251564019840. Its totient is φ = 42580022784.

The previous prime is 113120221211. The next prime is 113120221231. The reversal of 113120221220 is 22122021311.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2657747 + ... + 2699973.

It is an arithmetic number, because the mean of its divisors is an integer number (5240917080).

Almost surely, 2^113120221220 is an apocalyptic number.

113120221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113120221220 is an abundant number, since it is smaller than the sum of its proper divisors (138443798620).

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

113120221220 is a wasteful number, since it uses less digits than its factorization.

113120221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50132 (or 50130 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 113120221220 its reverse (22122021311), we get a palindrome (135242242531).

The spelling of 113120221220 in words is "one hundred thirteen billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty".