20112330212112 has 160 divisors (see below), whose sum is σ = 54898968272896. Its totient is φ = 6334796160000.

The previous prime is 20112330212089. The next prime is 20112330212113. The reversal of 20112330212112 is 21121203321102.

It is a super-2 number, since 2×20112330212112² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20112330212113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191963613 + ... + 192068355.

Almost surely, 2^{20112330212112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112330212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27449484136448).

20112330212112 is an abundant number, since it is smaller than the sum of its proper divisors (34786638060784).

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

20112330212112 is a wasteful number, since it uses less digits than its factorization.

20112330212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107829 (or 107823 counting only the distinct ones).

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

Adding to 20112330212112 its reverse (21121203321102), we get a palindrome (41233533533214).

The spelling of 20112330212112 in words is "twenty trillion, one hundred twelve billion, three hundred thirty million, two hundred twelve thousand, one hundred twelve".