91200022120022 has 16 divisors (see below), whose sum is σ = 137846719296000. Its totient is φ = 45251127865320.

The previous prime is 91200022120021. The next prime is 91200022120091. The reversal of 91200022120022 is 22002122000219.

It is a self number, because there is not a number n which added to its sum of digits gives 91200022120022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91200022120021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12106979 + ... + 18137777.

It is an arithmetic number, because the mean of its divisors is an integer number (8615419956000).

Almost surely, 2^{91200022120022} is an apocalyptic number.

91200022120022 is a deficient number, since it is larger than the sum of its proper divisors (46646697175978).

91200022120022 is a wasteful number, since it uses less digits than its factorization.

91200022120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088651.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 91200022120022 in words is "ninety-one trillion, two hundred billion, twenty-two million, one hundred twenty thousand, twenty-two".