2101021011992 has 32 divisors (see below), whose sum is σ = 4502403360000. Its totient is φ = 900394481184.

The previous prime is 2101021011967. The next prime is 2101021012009. The reversal of 2101021011992 is 2991101201012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296759 + ... + 2071257.

It is an arithmetic number, because the mean of its divisors is an integer number (140700105000).

Almost surely, 2^{2101021011992} is an apocalyptic number.

It is an amenable number.

2101021011992 is an abundant number, since it is smaller than the sum of its proper divisors (2401382348008).

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

2101021011992 is a wasteful number, since it uses less digits than its factorization.

2101021011992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795655 (or 1795651 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 2101021011992 in words is "two trillion, one hundred one billion, twenty-one million, eleven thousand, nine hundred ninety-two".