312212301000 has 64 divisors (see below), whose sum is σ = 974102388480. Its totient is φ = 83256612800.

The previous prime is 312212300971. The next prime is 312212301017. The reversal of 312212301000 is 103212213.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 52032384 + ... + 52038383.

It is an arithmetic number, because the mean of its divisors is an integer number (15220349820).

Almost surely, 2^312212301000 is an apocalyptic number.

312212301000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312212301000 is an abundant number, since it is smaller than the sum of its proper divisors (661890087480).

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

312212301000 is a wasteful number, since it uses less digits than its factorization.

312212301000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104070791 (or 104070777 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 312212301000 its reverse (103212213), we get a palindrome (312315513213).

The spelling of 312212301000 in words is "three hundred twelve billion, two hundred twelve million, three hundred one thousand".