20001022112031 has 16 divisors (see below), whose sum is σ = 27633636687360. Its totient is φ = 12859061604480.

The previous prime is 20001022112021. The next prime is 20001022112069. The reversal of 20001022112031 is 13021122010002.

It is not a de Polignac number, because 20001022112031 - 2⁵ = 20001022111999 is a prime.

It is a super-2 number, since 2×20001022112031² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20001022112031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001022112021) 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, 981297930 + ... + 981318311.

It is an arithmetic number, because the mean of its divisors is an integer number (1727102292960).

Almost surely, 2^{20001022112031} is an apocalyptic number.

20001022112031 is a deficient number, since it is larger than the sum of its proper divisors (7632614575329).

20001022112031 is a wasteful number, since it uses less digits than its factorization.

20001022112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962616366.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20001022112031 its reverse (13021122010002), we get a palindrome (33022144122033).

The spelling of 20001022112031 in words is "twenty trillion, one billion, twenty-two million, one hundred twelve thousand, thirty-one".