31121200022 has 8 divisors (see below), whose sum is σ = 50925600072. Its totient is φ = 14146000000.

The previous prime is 31121200021. The next prime is 31121200109. The reversal of 31121200022 is 22000212113.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31121200021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707299979 + ... + 707300022.

It is an arithmetic number, because the mean of its divisors is an integer number (6365700009).

Almost surely, 2^31121200022 is an apocalyptic number.

31121200022 is a deficient number, since it is larger than the sum of its proper divisors (19804400050).

31121200022 is a wasteful number, since it uses less digits than its factorization.

31121200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414600014.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31121200022 its reverse (22000212113), we get a palindrome (53121412135).

The spelling of 31121200022 in words is "thirty-one billion, one hundred twenty-one million, two hundred thousand, twenty-two".