20221020331131 has 8 divisors (see below), whose sum is σ = 26968700875600. Its totient is φ = 13477010003712.

The previous prime is 20221020331123. The next prime is 20221020331163. The reversal of 20221020331131 is 13113302012202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20221020331131 - 2³ = 20221020331123 is a prime.

It is a super-2 number, since 2×20221020331131² (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 = 20221020331098 and 20221020331107.

It is not an unprimeable number, because it can be changed into a prime (20221020331121) 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, 917541406 + ... + 917563443.

It is an arithmetic number, because the mean of its divisors is an integer number (3371087609450).

Almost surely, 2^{20221020331131} is an apocalyptic number.

20221020331131 is a deficient number, since it is larger than the sum of its proper divisors (6747680544469).

20221020331131 is a wasteful number, since it uses less digits than its factorization.

20221020331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835108525.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20221020331131 its reverse (13113302012202), we get a palindrome (33334322343333).

The spelling of 20221020331131 in words is "twenty trillion, two hundred twenty-one billion, twenty million, three hundred thirty-one thousand, one hundred thirty-one".