100215052249 has 16 divisors (see below), whose sum is σ = 109713384144. Its totient is φ = 90972921600.

The previous prime is 100215052237. The next prime is 100215052271. The reversal of 100215052249 is 942250512001.

It can be written as a sum of positive squares in 8 ways, for example, as 7514289225 + 92700763024 = 86685^2 + 304468^2 .

It is a cyclic number.

It is not a de Polignac number, because 100215052249 - 2⁷ = 100215052121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100215052249.

It is not an unprimeable number, because it can be changed into a prime (100215052349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6791019 + ... + 6805759.

It is an arithmetic number, because the mean of its divisors is an integer number (6857086509).

Almost surely, 2^100215052249 is an apocalyptic number.

It is an amenable number.

100215052249 is a deficient number, since it is larger than the sum of its proper divisors (9498331895).

100215052249 is a wasteful number, since it uses less digits than its factorization.

100215052249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23388.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 100215052249 in words is "one hundred billion, two hundred fifteen million, fifty-two thousand, two hundred forty-nine".