31222022022212 has 12 divisors (see below), whose sum is σ = 62444044044480. Its totient is φ = 13380866580936.

The previous prime is 31222022022193. The next prime is 31222022022251. The reversal of 31222022022212 is 21222022022213.

31222022022212 is an admirable number.

It is a super-2 number, since 2×31222022022212² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557536107512 + ... + 557536107567.

It is an arithmetic number, because the mean of its divisors is an integer number (5203670337040).

Almost surely, 2^{31222022022212} is an apocalyptic number.

It is an amenable number.

31222022022212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31222022022212 is a wasteful number, since it uses less digits than its factorization.

31222022022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115072215090 (or 1115072215088 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 31222022022212 its reverse (21222022022213), we get a palindrome (52444044044425).

Subtracting from 31222022022212 its reverse (21222022022213), we obtain a palindrome (9999999999999).

The spelling of 31222022022212 in words is "thirty-one trillion, two hundred twenty-two billion, twenty-two million, twenty-two thousand, two hundred twelve".