91310020222 has 8 divisors (see below), whose sum is σ = 144173716200. Its totient is φ = 43252114824.

The previous prime is 91310020177. The next prime is 91310020229. The reversal of 91310020222 is 22202001319.

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

It is a junction number, because it is equal to n+sod(n) for n = 91310020193 and 91310020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91310020229) 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, 1201447597 + ... + 1201447672.

It is an arithmetic number, because the mean of its divisors is an integer number (18021714525).

Almost surely, 2^91310020222 is an apocalyptic number.

91310020222 is a deficient number, since it is larger than the sum of its proper divisors (52863695978).

91310020222 is a wasteful number, since it uses less digits than its factorization.

91310020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402895290.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 91310020222 in words is "ninety-one billion, three hundred ten million, twenty thousand, two hundred twenty-two".