99220851 has 12 divisors (see below), whose sum is σ = 144001000. Its totient is φ = 65832480.

The previous prime is 99220843. The next prime is 99220853. The reversal of 99220851 is 15802299.

It is not a de Polignac number, because 99220851 - 2³ = 99220843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99220853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24226 + ... + 28023.

Almost surely, 2^99220851 is an apocalyptic number.

99220851 is a deficient number, since it is larger than the sum of its proper divisors (44780149).

99220851 is a wasteful number, since it uses less digits than its factorization.

99220851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52466 (or 52463 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 99220851 is about 9960.9663687817. The cubic root of 99220851 is about 462.9502424343.

The spelling of 99220851 in words is "ninety-nine million, two hundred twenty thousand, eight hundred fifty-one".