312215922050 has 54 divisors (see below), whose sum is σ = 613041958953. Its totient is φ = 118284954480.

The previous prime is 312215922037. The next prime is 312215922059. The reversal of 312215922050 is 50229512213.

It can be written as a sum of positive squares in 2 ways, for example, as 305971603609 + 6244318441 = 553147^2 + 79021^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=395105.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312215921998 and 312215922016.

It is not an unprimeable number, because it can be changed into a prime (312215922059) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 75067871 + ... + 75072029.

Almost surely, 2^312215922050 is an apocalyptic number.

312215922050 is a deficient number, since it is larger than the sum of its proper divisors (300826036903).

312215922050 is an frugal number, since it uses more digits than its factorization.

312215922050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368 (or 4185 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

Multiplying 312215922050 by its sum of digits (32), we get a square (9990909505600 = 3160840²).

The spelling of 312215922050 in words is "three hundred twelve billion, two hundred fifteen million, nine hundred twenty-two thousand, fifty".