91031200022 has 8 divisors (see below), whose sum is σ = 156053485776. Its totient is φ = 39013371432.

The previous prime is 91031199971. The next prime is 91031200027. The reversal of 91031200022 is 22000213019.

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

It is a junction number, because it is equal to n+sod(n) for n = 91031199967 and 91031200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91031200027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3251114273 + ... + 3251114300.

It is an arithmetic number, because the mean of its divisors is an integer number (19506685722).

Almost surely, 2^91031200022 is an apocalyptic number.

91031200022 is a deficient number, since it is larger than the sum of its proper divisors (65022285754).

91031200022 is a wasteful number, since it uses less digits than its factorization.

91031200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6502228582.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 91031200022 in words is "ninety-one billion, thirty-one million, two hundred thousand, twenty-two".