22012012111091 has 2 divisors, whose sum is σ = 22012012111092. Its totient is φ = 22012012111090.

The previous prime is 22012012111087. The next prime is 22012012111147. The reversal of 22012012111091 is 19011121021022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22012012111091 - 2² = 22012012111087 is a prime.

It is a super-3 number, since 3×22012012111091³ (a number of 41 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22012012119091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006006055545 + 11006006055546.

It is an arithmetic number, because the mean of its divisors is an integer number (11006006055546).

Almost surely, 2^{22012012111091} is an apocalyptic number.

22012012111091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012012111091 is an equidigital number, since it uses as much as digits as its factorization.

22012012111091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 22012012111091 in words is "twenty-two trillion, twelve billion, twelve million, one hundred eleven thousand, ninety-one".