91022110002211 has 4 divisors (see below), whose sum is σ = 91026596743552. Its totient is φ = 91017623260872.

The previous prime is 91022110002209. The next prime is 91022110002227. The reversal of 91022110002211 is 11220001122019.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91022110002211 - 2¹ = 91022110002209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91022110002251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2243340240 + ... + 2243380813.

It is an arithmetic number, because the mean of its divisors is an integer number (22756649185888).

Almost surely, 2^{91022110002211} is an apocalyptic number.

91022110002211 is a deficient number, since it is larger than the sum of its proper divisors (4486741341).

91022110002211 is a wasteful number, since it uses less digits than its factorization.

91022110002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486741340.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 91022110002211 in words is "ninety-one trillion, twenty-two billion, one hundred ten million, two thousand, two hundred eleven".