100212879 has 16 divisors (see below), whose sum is σ = 145926144. Its totient is φ = 60799200.

The previous prime is 100212839. The next prime is 100212881. The reversal of 100212879 is 978212001.

It is not a de Polignac number, because 100212879 - 2⁷ = 100212751 is a prime.

It is a super-2 number, since 2×100212879² = 20085242234937282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212809) 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, 15327 + ... + 20864.

It is an arithmetic number, because the mean of its divisors is an integer number (9120384).

Almost surely, 2^100212879 is an apocalyptic number.

100212879 is a deficient number, since it is larger than the sum of its proper divisors (45713265).

100212879 is a wasteful number, since it uses less digits than its factorization.

100212879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36278.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 100212879 is about 10010.6382913379. The cubic root of 100212879 is about 464.4880155170.

The spelling of 100212879 in words is "one hundred million, two hundred twelve thousand, eight hundred seventy-nine".