91112001121022 has 16 divisors (see below), whose sum is σ = 159139020827232. Its totient is φ = 38311245754080.

The previous prime is 91112001120953. The next prime is 91112001121061. The reversal of 91112001121022 is 22012110021119.

It is a happy number.

It is a super-2 number, since 2×91112001121022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61396226429 + ... + 61396227912.

It is an arithmetic number, because the mean of its divisors is an integer number (9946188801702).

Almost surely, 2^{91112001121022} is an apocalyptic number.

91112001121022 is a deficient number, since it is larger than the sum of its proper divisors (68027019706210).

91112001121022 is a wasteful number, since it uses less digits than its factorization.

91112001121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122792454403.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 91112001121022 in words is "ninety-one trillion, one hundred twelve billion, one million, one hundred twenty-one thousand, twenty-two".