113212022020 has 12 divisors (see below), whose sum is σ = 237745246284. Its totient is φ = 45284808800.

The previous prime is 113212022017. The next prime is 113212022039. The reversal of 113212022020 is 20220212311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62984937024 + 50227084996 = 250968^2 + 224114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 113212021985 and 113212022003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2830300531 + ... + 2830300570.

It is an arithmetic number, because the mean of its divisors is an integer number (19812103857).

Almost surely, 2^113212022020 is an apocalyptic number.

113212022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113212022020 is an abundant number, since it is smaller than the sum of its proper divisors (124533224264).

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

113212022020 is a wasteful number, since it uses less digits than its factorization.

113212022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660601110 (or 5660601108 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 113212022020 its reverse (20220212311), we get a palindrome (133432234331).

The spelling of 113212022020 in words is "one hundred thirteen billion, two hundred twelve million, twenty-two thousand, twenty".