113211220122 has 192 divisors, whose sum is σ = 338244850944. Its totient is φ = 26409784320.

The previous prime is 113211220093. The next prime is 113211220147. The reversal of 113211220122 is 221022112311.

113211220122 is a `hidden beast` number, since 1 + 1 + 321 + 1 + 220 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 113211220095 and 113211220104.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 581758 + ... + 751574.

It is an arithmetic number, because the mean of its divisors is an integer number (1761691932).

Almost surely, 2^113211220122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113211220122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169122425472).

113211220122 is an abundant number, since it is smaller than the sum of its proper divisors (225033630822).

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

113211220122 is a wasteful number, since it uses less digits than its factorization.

113211220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169893 (or 169890 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 113211220122 its reverse (221022112311), we get a palindrome (334233332433).

It can be divided in two parts, 113211 and 220122, that added together give a palindrome (333333).

The spelling of 113211220122 in words is "one hundred thirteen billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-two".