20112212320031 has 16 divisors (see below), whose sum is σ = 23011653377664. Its totient is φ = 17413418187264.

The previous prime is 20112212320019. The next prime is 20112212320063. The reversal of 20112212320031 is 13002321221102.

It is a cyclic number.

It is not a de Polignac number, because 20112212320031 - 2⁶ = 20112212319967 is a prime.

It is a super-2 number, since 2×20112212320031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112212319985 and 20112212320012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112212320931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155234711 + ... + 155364216.

It is an arithmetic number, because the mean of its divisors is an integer number (1438228336104).

Almost surely, 2^{20112212320031} is an apocalyptic number.

20112212320031 is a deficient number, since it is larger than the sum of its proper divisors (2899441057633).

20112212320031 is a wasteful number, since it uses less digits than its factorization.

20112212320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310599250.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20112212320031 its reverse (13002321221102), we get a palindrome (33114533541133).

The spelling of 20112212320031 in words is "twenty trillion, one hundred twelve billion, two hundred twelve million, three hundred twenty thousand, thirty-one".