99360423221 has 4 divisors (see below), whose sum is σ = 104589919200. Its totient is φ = 94130927244.

The previous prime is 99360423193. The next prime is 99360423241. The reversal of 99360423221 is 12232406399.

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.

It is a cyclic number.

It is not a de Polignac number, because 99360423221 - 2⁶ = 99360423157 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 (99360423241) 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, 2614747961 + ... + 2614747998.

It is an arithmetic number, because the mean of its divisors is an integer number (26147479800).

Almost surely, 2^99360423221 is an apocalyptic number.

It is an amenable number.

99360423221 is a deficient number, since it is larger than the sum of its proper divisors (5229495979).

99360423221 is a wasteful number, since it uses less digits than its factorization.

99360423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229495978.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 99360423221 in words is "ninety-nine billion, three hundred sixty million, four hundred twenty-three thousand, two hundred twenty-one".