91202000022 has 48 divisors (see below), whose sum is σ = 225904004352. Its totient is φ = 26049582000.

The previous prime is 91201999957. The next prime is 91202000023. The reversal of 91202000022 is 22000020219.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 91201999959 and 91202000004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91202000023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298303 + ... + 520949.

It is an arithmetic number, because the mean of its divisors is an integer number (4706333424).

Almost surely, 2^91202000022 is an apocalyptic number.

91202000022 is an abundant number, since it is smaller than the sum of its proper divisors (134702004330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91202000022 is a wasteful number, since it uses less digits than its factorization.

91202000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225913 (or 225910 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The spelling of 91202000022 in words is "ninety-one billion, two hundred two million, twenty-two", and thus it is an aban number.