20100012109975 has 36 divisors (see below), whose sum is σ = 28994650611984. Its totient is φ = 13782195799680.

The previous prime is 20100012109951. The next prime is 20100012109987. The reversal of 20100012109975 is 57990121000102.

It is not a de Polignac number, because 20100012109975 - 2²³ = 20100003721367 is a prime.

It is a super-2 number, since 2×20100012109975² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25512147 + ... + 26288203.

It is an arithmetic number, because the mean of its divisors is an integer number (805406961444).

Almost surely, 2^{20100012109975} is an apocalyptic number.

20100012109975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20100012109975 is a deficient number, since it is larger than the sum of its proper divisors (8894638502009).

20100012109975 is a wasteful number, since it uses less digits than its factorization.

20100012109975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797224 (or 797212 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 37.

The spelling of 20100012109975 in words is "twenty trillion, one hundred billion, twelve million, one hundred nine thousand, nine hundred seventy-five".