91122203312231 has 16 divisors (see below), whose sum is σ = 112893122001408. Its totient is φ = 71619226812000.

The previous prime is 91122203312221. The next prime is 91122203312311. The reversal of 91122203312231 is 13221330222119.

It is not a de Polignac number, because 91122203312231 - 2¹⁴ = 91122203295847 is a prime.

It is a super-2 number, since 2×91122203312231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91122203312221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3315691205 + ... + 3315718686.

It is an arithmetic number, because the mean of its divisors is an integer number (7055820125088).

Almost surely, 2^{91122203312231} is an apocalyptic number.

91122203312231 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

91122203312231 is a deficient number, since it is larger than the sum of its proper divisors (21770918689177).

91122203312231 is a wasteful number, since it uses less digits than its factorization.

91122203312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631410062.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 91122203312231 in words is "ninety-one trillion, one hundred twenty-two billion, two hundred three million, three hundred twelve thousand, two hundred thirty-one".