20221131031101 has 72 divisors (see below), whose sum is σ = 39513835670400. Its totient is φ = 9696446400960.

The previous prime is 20221131030979. The next prime is 20221131031141. The reversal of 20221131031101 is 10113013112202.

20221131031101 is a `hidden beast` number, since 2 + 0 + 221 + 1 + 310 + 31 + 101 = 666.

It is not a de Polignac number, because 20221131031101 - 2⁴² = 15823084519997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221131031141) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 101925801 + ... + 102123998.

It is an arithmetic number, because the mean of its divisors is an integer number (548803273200).

Almost surely, 2^{20221131031101} is an apocalyptic number.

20221131031101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20221131031101 is a deficient number, since it is larger than the sum of its proper divisors (19292704639299).

20221131031101 is a wasteful number, since it uses less digits than its factorization.

20221131031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204049847 (or 204049833 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20221131031101 its reverse (10113013112202), we get a palindrome (30334144143303).

The spelling of 20221131031101 in words is "twenty trillion, two hundred twenty-one billion, one hundred thirty-one million, thirty-one thousand, one hundred one".