99221443331 has 8 divisors (see below), whose sum is σ = 103550153760. Its totient is φ = 94893960832.

The previous prime is 99221443303. The next prime is 99221443337. The reversal of 99221443331 is 13334412299.

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

It is not a de Polignac number, because 99221443331 - 2⁶ = 99221443267 is a prime.

It is a super-2 number, since 2×99221443331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99221443337) 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, 139910 + ... + 466923.

It is an arithmetic number, because the mean of its divisors is an integer number (12943769220).

Almost surely, 2^99221443331 is an apocalyptic number.

99221443331 is a deficient number, since it is larger than the sum of its proper divisors (4328710429).

99221443331 is a wasteful number, since it uses less digits than its factorization.

99221443331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613965.

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

The spelling of 99221443331 in words is "ninety-nine billion, two hundred twenty-one million, four hundred forty-three thousand, three hundred thirty-one".