212322200031 has 24 divisors (see below), whose sum is σ = 307755858800. Its totient is φ = 141055364736.

The previous prime is 212322200021. The next prime is 212322200039. The reversal of 212322200031 is 130002223212.

It is not a de Polignac number, because 212322200031 - 2⁶ = 212322199967 is a prime.

It is a super-2 number, since 2×212322200031² (a number of 23 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 = 212322199977 and 212322200013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212322200039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12265020 + ... + 12282318.

Almost surely, 2^212322200031 is an apocalyptic number.

212322200031 is a deficient number, since it is larger than the sum of its proper divisors (95433658769).

212322200031 is a wasteful number, since it uses less digits than its factorization.

212322200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21975 (or 21972 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212322200031 its reverse (130002223212), we get a palindrome (342324423243).

The spelling of 212322200031 in words is "two hundred twelve billion, three hundred twenty-two million, two hundred thousand, thirty-one".