2121200999992 has 16 divisors (see below), whose sum is σ = 3978662790600. Its totient is φ = 1060224255840.

The previous prime is 2121200999971. The next prime is 2121201000007. The reversal of 2121200999992 is 2999990021212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47006559 + ... + 47051662.

Almost surely, 2^{2121200999992} is an apocalyptic number.

It is an amenable number.

2121200999992 is a deficient number, since it is larger than the sum of its proper divisors (1857461790608).

2121200999992 is a wasteful number, since it uses less digits than its factorization.

2121200999992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94061046 (or 94061042 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 55.

The spelling of 2121200999992 in words is "two trillion, one hundred twenty-one billion, two hundred million, nine hundred ninety-nine thousand, nine hundred ninety-two".