112112111211220 has 24 divisors (see below), whose sum is σ = 235436376445704. Its totient is φ = 44844664884096.

The previous prime is 112112111211209. The next prime is 112112111211229. The reversal of 112112111211220 is 22112111211211.

It can be written as a sum of positive squares in 4 ways, for example, as 47323585257796 + 64788525953424 = 6879214^2 + 8049132^2 .

It is a super-2 number, since 2×112112111211220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112111211229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6048099 + ... + 16149418.

It is an arithmetic number, because the mean of its divisors is an integer number (9809849018571).

Almost surely, 2^{112112111211220} is an apocalyptic number.

112112111211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112112111211220 is an abundant number, since it is smaller than the sum of its proper divisors (123324265234484).

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

112112111211220 is a wasteful number, since it uses less digits than its factorization.

112112111211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22450059 (or 22450057 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 112112111211220 its reverse (22112111211211), we get a palindrome (134224222422431).

Subtracting from 112112111211220 its reverse (22112111211211), we obtain a palindrome (90000000000009).

The spelling of 112112111211220 in words is "one hundred twelve trillion, one hundred twelve billion, one hundred eleven million, two hundred eleven thousand, two hundred twenty".