22210111091 has 16 divisors (see below), whose sum is σ = 26882643456. Its totient is φ = 17913038976.

The previous prime is 22210111087. The next prime is 22210111139. The reversal of 22210111091 is 19011101222.

It is not a de Polignac number, because 22210111091 - 2² = 22210111087 is a prime.

It is a super-2 number, since 2×22210111091² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22210111031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523040 + ... + 563906.

It is an arithmetic number, because the mean of its divisors is an integer number (1680165216).

Almost surely, 2^22210111091 is an apocalyptic number.

22210111091 is a deficient number, since it is larger than the sum of its proper divisors (4672532365).

22210111091 is a wasteful number, since it uses less digits than its factorization.

22210111091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45458.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 22210111091 in words is "twenty-two billion, two hundred ten million, one hundred eleven thousand, ninety-one".