22020302031 has 96 divisors (see below), whose sum is σ = 37402783488. Its totient is φ = 11420559360.

The previous prime is 22020301993. The next prime is 22020302039. The reversal of 22020302031 is 13020302022.

It is not a de Polignac number, because 22020302031 - 2⁶ = 22020301967 is a prime.

It is a super-2 number, since 2×22020302031² (a number of 21 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 22020302031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020302039) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 39112156 + ... + 39112718.

It is an arithmetic number, because the mean of its divisors is an integer number (389612328).

Almost surely, 2^22020302031 is an apocalyptic number.

22020302031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22020302031 is a deficient number, since it is larger than the sum of its proper divisors (15382481457).

22020302031 is a wasteful number, since it uses less digits than its factorization.

22020302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22020302031 its reverse (13020302022), we get a palindrome (35040604053).

Subtracting from 22020302031 its reverse (13020302022), we obtain a palindrome (9000000009).

The spelling of 22020302031 in words is "twenty-two billion, twenty million, three hundred two thousand, thirty-one".