100992288121 has 4 divisors (see below), whose sum is σ = 101000244852. Its totient is φ = 100984331392.

The previous prime is 100992288113. The next prime is 100992288149. The reversal of 100992288121 is 121882299001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98498684025 + 2493604096 = 313845^2 + 49936^2 .

It is a cyclic number.

It is not a de Polignac number, because 100992288121 - 2³ = 100992288113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100992288421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3959296 + ... + 3984721.

It is an arithmetic number, because the mean of its divisors is an integer number (25250061213).

Almost surely, 2^100992288121 is an apocalyptic number.

It is an amenable number.

100992288121 is a deficient number, since it is larger than the sum of its proper divisors (7956731).

100992288121 is an equidigital number, since it uses as much as digits as its factorization.

100992288121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7956730.

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 100992288121 in words is "one hundred billion, nine hundred ninety-two million, two hundred eighty-eight thousand, one hundred twenty-one".