9999992231 has 8 divisors (see below), whose sum is σ = 10201572864. Its totient is φ = 9800098840.

The previous prime is 9999992227. The next prime is 9999992273. The reversal of 9999992231 is 1322999999.

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 9999992231 - 2² = 9999992227 is a prime.

It is a super-2 number, since 2×9999992231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999992221) 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, 409835 + ... + 433548.

It is an arithmetic number, because the mean of its divisors is an integer number (1275196608).

Almost surely, 2^9999992231 is an apocalyptic number.

9999992231 is a deficient number, since it is larger than the sum of its proper divisors (201580633).

9999992231 is a wasteful number, since it uses less digits than its factorization.

9999992231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843621.

The product of its digits is 6377292, while the sum is 62.

The square root of 9999992231 is about 99999.9611549925. The cubic root of 9999992231 is about 2154.4341321050.

The spelling of 9999992231 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-two thousand, two hundred thirty-one".