99012223213 has 4 divisors (see below), whose sum is σ = 99015425568. Its totient is φ = 99009020860.

The previous prime is 99012223201. The next prime is 99012223231. The reversal of 99012223213 is 31232221099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31232221099 = 50053 ⋅623983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99012223213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99012221213) 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 3 ways as a sum of consecutive naturals, for example, 1554343 + ... + 1616788.

It is an arithmetic number, because the mean of its divisors is an integer number (24753856392).

Almost surely, 2^99012223213 is an apocalyptic number.

It is an amenable number.

99012223213 is a deficient number, since it is larger than the sum of its proper divisors (3202355).

99012223213 is a wasteful number, since it uses less digits than its factorization.

99012223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202354.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 99012223213 in words is "ninety-nine billion, twelve million, two hundred twenty-three thousand, two hundred thirteen".