91201021122 has 8 divisors (see below), whose sum is σ = 182402042256. Its totient is φ = 30400340372.

The previous prime is 91201021111. The next prime is 91201021123. The reversal of 91201021122 is 22112010219.

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

91201021122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (91201021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7600085088 + ... + 7600085099.

It is an arithmetic number, because the mean of its divisors is an integer number (22800255282).

Almost surely, 2^91201021122 is an apocalyptic number.

91201021122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

91201021122 is a wasteful number, since it uses less digits than its factorization.

91201021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15200170192.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 91201021122 in words is "ninety-one billion, two hundred one million, twenty-one thousand, one hundred twenty-two".