2121066702056 has 16 divisors (see below), whose sum is σ = 3978905703840. Its totient is φ = 1060025181040.

The previous prime is 2121066702011. The next prime is 2121066702067. The reversal of 2121066702056 is 6502076601212.

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, 63503510 + ... + 63536901.

It is an arithmetic number, because the mean of its divisors is an integer number (248681606490).

Almost surely, 2^{2121066702056} is an apocalyptic number.

It is an amenable number.

2121066702056 is a deficient number, since it is larger than the sum of its proper divisors (1857839001784).

2121066702056 is a wasteful number, since it uses less digits than its factorization.

2121066702056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127042504 (or 127042500 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 2121066702056 in words is "two trillion, one hundred twenty-one billion, sixty-six million, seven hundred two thousand, fifty-six".