2121300031212 has 36 divisors (see below), whose sum is σ = 5507098733136. Its totient is φ = 687989198880.

The previous prime is 2121300031139. The next prime is 2121300031237.

2121300031212 is a `hidden beast` number, since 2 + 121 + 300 + 0 + 31 + 212 = 666.

2121300031212 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 796282464 + ... + 796285127.

Almost surely, 2^{2121300031212} is an apocalyptic number.

It is an amenable number.

2121300031212 is an abundant number, since it is smaller than the sum of its proper divisors (3385798701924).

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

2121300031212 is a wasteful number, since it uses less digits than its factorization.

2121300031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592567638 (or 1592567633 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 21213000 and 31212, that added together give a palindrome (21244212).

The spelling of 2121300031212 in words is "two trillion, one hundred twenty-one billion, three hundred million, thirty-one thousand, two hundred twelve".