113213222112 has 48 divisors (see below), whose sum is σ = 297344017152. Its totient is φ = 37717511040.

The previous prime is 113213222107. The next prime is 113213222123. The reversal of 113213222112 is 211222312311.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135538 + ... + 494769.

It is an arithmetic number, because the mean of its divisors is an integer number (6194667024).

Almost surely, 2^113213222112 is an apocalyptic number.

113213222112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113213222112 is an abundant number, since it is smaller than the sum of its proper divisors (184130795040).

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

113213222112 is a wasteful number, since it uses less digits than its factorization.

113213222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632191 (or 632183 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 113213222112 its reverse (211222312311), we get a palindrome (324435534423).

The spelling of 113213222112 in words is "one hundred thirteen billion, two hundred thirteen million, two hundred twenty-two thousand, one hundred twelve".