312123002022 has 32 divisors (see below), whose sum is σ = 746961032160. Its totient is φ = 96037846560.

The previous prime is 312123002003. The next prime is 312123002033. The reversal of 312123002022 is 220200321213.

312123002022 is a `hidden beast` number, since 312 + 12 + 300 + 20 + 22 = 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 = 312123001986 and 312123002004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222309129 + ... + 222310532.

It is an arithmetic number, because the mean of its divisors is an integer number (23342532255).

Almost surely, 2^312123002022 is an apocalyptic number.

312123002022 is an abundant number, since it is smaller than the sum of its proper divisors (434838030138).

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

312123002022 is a wasteful number, since it uses less digits than its factorization.

312123002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444619685 (or 444619679 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 312123002022 its reverse (220200321213), we get a palindrome (532323323235).

The spelling of 312123002022 in words is "three hundred twelve billion, one hundred twenty-three million, two thousand, twenty-two".