2101929661612 has 24 divisors (see below), whose sum is σ = 4080787945920. Its totient is φ = 939228969360.

The previous prime is 2101929661603. The next prime is 2101929661627. The reversal of 2101929661612 is 2161669291012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404837478 + ... + 404842669.

It is an arithmetic number, because the mean of its divisors is an integer number (170032831080).

Almost surely, 2^{2101929661612} is an apocalyptic number.

2101929661612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101929661612 is a deficient number, since it is larger than the sum of its proper divisors (1978858284308).

2101929661612 is a wasteful number, since it uses less digits than its factorization.

2101929661612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809680221 (or 809680219 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 2101929661612 in words is "two trillion, one hundred one billion, nine hundred twenty-nine million, six hundred sixty-one thousand, six hundred twelve".