2100020009990 has 16 divisors (see below), whose sum is σ = 4320041163552. Its totient is φ = 720006860544.

The previous prime is 2100020009953. The next prime is 2100020010007. The reversal of 2100020009990 is 999000200012.

It is a congruent number.

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, 15000142859 + ... + 15000142998.

It is an arithmetic number, because the mean of its divisors is an integer number (270002572722).

Almost surely, 2^{2100020009990} is an apocalyptic number.

2100020009990 is an abundant number, since it is smaller than the sum of its proper divisors (2220021153562).

2100020009990 is a wasteful number, since it uses less digits than its factorization.

2100020009990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30000285871.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 2100020009990 in words is "two trillion, one hundred billion, twenty million, nine thousand, nine hundred ninety".