99212084 has 12 divisors (see below), whose sum is σ = 174871200. Its totient is φ = 49248888.

The previous prime is 99212083. The next prime is 99212089. The reversal of 99212084 is 48021299.

It is a super-2 number, since 2×99212084² = 19686075223246112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99212081) 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, 88664 + ... + 89775.

It is an arithmetic number, because the mean of its divisors is an integer number (14572600).

Almost surely, 2^99212084 is an apocalyptic number.

It is an amenable number.

99212084 is a deficient number, since it is larger than the sum of its proper divisors (75659116).

99212084 is a wasteful number, since it uses less digits than its factorization.

99212084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178582 (or 178580 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 99212084 is about 9960.5262913161. The cubic root of 99212084 is about 462.9366068450.

The spelling of 99212084 in words is "ninety-nine million, two hundred twelve thousand, eighty-four".