312022212120 has 96 divisors (see below), whose sum is σ = 1041479590320. Its totient is φ = 80957111040.

The previous prime is 312022212113. The next prime is 312022212143. The reversal of 312022212120 is 21212220213.

312022212120 is a `hidden beast` number, since 31 + 202 + 221 + 212 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 312022212093 and 312022212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11699226 + ... + 11725865.

Almost surely, 2^312022212120 is an apocalyptic number.

312022212120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312022212120 is an abundant number, since it is smaller than the sum of its proper divisors (729457378200).

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

312022212120 is a wasteful number, since it uses less digits than its factorization.

312022212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23425145 (or 23425138 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 312022212120 its reverse (21212220213), we get a palindrome (333234432333).

The spelling of 312022212120 in words is "three hundred twelve billion, twenty-two million, two hundred twelve thousand, one hundred twenty".