99920314212 has 48 divisors (see below), whose sum is σ = 234666116160. Its totient is φ = 33090509952.

The previous prime is 99920314189. The next prime is 99920314213. The reversal of 99920314212 is 21241302999.

It is not an unprimeable number, because it can be changed into a prime (99920314213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110114 + ... + 1196742.

It is an arithmetic number, because the mean of its divisors is an integer number (4888877420).

Almost surely, 2^99920314212 is an apocalyptic number.

It is an amenable number.

99920314212 is an abundant number, since it is smaller than the sum of its proper divisors (134745801948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99920314212 is a wasteful number, since it uses less digits than its factorization.

99920314212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87260 (or 87258 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 99920314212 in words is "ninety-nine billion, nine hundred twenty million, three hundred fourteen thousand, two hundred twelve".