312122030000 has 100 divisors (see below), whose sum is σ = 824376996168. Its totient is φ = 113498880000.

The previous prime is 312122029979. The next prime is 312122030069. The reversal of 312122030000 is 30221213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×312122030000² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1308737 + ... + 1528736.

Almost surely, 2^312122030000 is an apocalyptic number.

It is an amenable number.

312122030000 is an abundant number, since it is smaller than the sum of its proper divisors (512254966168).

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

312122030000 is a wasteful number, since it uses less digits than its factorization.

312122030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837512 (or 2837491 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 312122030000 its reverse (30221213), we get a palindrome (312152251213).

The spelling of 312122030000 in words is "three hundred twelve billion, one hundred twenty-two million, thirty thousand".