9911322231 has 8 divisors (see below), whose sum is σ = 13217520624. Its totient is φ = 6606336000.

The previous prime is 9911322191. The next prime is 9911322251. The reversal of 9911322231 is 1322231199.

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

It is not a de Polignac number, because 9911322231 - 2²⁵ = 9877767799 is a prime.

It is a super-2 number, since 2×9911322231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9911322192 and 9911322201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9911322251) 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, 283786 + ... + 316791.

It is an arithmetic number, because the mean of its divisors is an integer number (1652190078).

Almost surely, 2^9911322231 is an apocalyptic number.

9911322231 is a deficient number, since it is larger than the sum of its proper divisors (3306198393).

9911322231 is a wasteful number, since it uses less digits than its factorization.

9911322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606081.

The product of its digits is 5832, while the sum is 33.

The square root of 9911322231 is about 99555.6238039821. The cubic root of 9911322231 is about 2148.0474236501.

The spelling of 9911322231 in words is "nine billion, nine hundred eleven million, three hundred twenty-two thousand, two hundred thirty-one".