99900221311 has 8 divisors (see below), whose sum is σ = 109546735824. Its totient is φ = 90347819520.

The previous prime is 99900221299. The next prime is 99900221347. The reversal of 99900221311 is 11312200999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99900221311 - 2²⁷ = 99766003583 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 (99900221111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23525956 + ... + 23530201.

It is an arithmetic number, because the mean of its divisors is an integer number (13693341978).

Almost surely, 2^99900221311 is an apocalyptic number.

99900221311 is a deficient number, since it is larger than the sum of its proper divisors (9646514513).

99900221311 is a wasteful number, since it uses less digits than its factorization.

99900221311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47056361.

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 99900221311 in words is "ninety-nine billion, nine hundred million, two hundred twenty-one thousand, three hundred eleven".