312232020220 has 24 divisors (see below), whose sum is σ = 655718793408. Its totient is φ = 124886798400.

The previous prime is 312232020209. The next prime is 312232020251. The reversal of 312232020220 is 22020232213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62910 + ... + 792730.

It is an arithmetic number, because the mean of its divisors is an integer number (27321616392).

Almost surely, 2^312232020220 is an apocalyptic number.

It is an amenable number.

312232020220 is an abundant number, since it is smaller than the sum of its proper divisors (343486773188).

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

312232020220 is a wasteful number, since it uses less digits than its factorization.

312232020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751221 (or 751219 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 312232020220 its reverse (22020232213), we get a palindrome (334252252433).

The spelling of 312232020220 in words is "three hundred twelve billion, two hundred thirty-two million, twenty thousand, two hundred twenty".