20112112122 has 16 divisors (see below), whose sum is σ = 40366362720. Its totient is φ = 6680347632.

The previous prime is 20112112121. The next prime is 20112112159. The reversal of 20112112122 is 22121121102.

It is not an unprimeable number, because it can be changed into a prime (20112112121) 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, 5920597 + ... + 5923992.

It is an arithmetic number, because the mean of its divisors is an integer number (2522897670).

Almost surely, 2^20112112122 is an apocalyptic number.

20112112122 is an abundant number, since it is smaller than the sum of its proper divisors (20254250598).

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

20112112122 is a wasteful number, since it uses less digits than its factorization.

20112112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11844877.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20112112122 its reverse (22121121102), we get a palindrome (42233233224).

The spelling of 20112112122 in words is "twenty billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-two".