22012110021091 has 2 divisors, whose sum is σ = 22012110021092. Its totient is φ = 22012110021090.

The previous prime is 22012110021089. The next prime is 22012110021119. The reversal of 22012110021091 is 19012001121022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22012110021091 - 2¹ = 22012110021089 is a prime.

It is a super-2 number, since 2×22012110021091² (a number of 27 digits) contains 22 as substring.

Together with 22012110021089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22012110021071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006055010545 + 11006055010546.

It is an arithmetic number, because the mean of its divisors is an integer number (11006055010546).

Almost surely, 2^{22012110021091} is an apocalyptic number.

22012110021091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012110021091 is an equidigital number, since it uses as much as digits as its factorization.

22012110021091 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 22.

The spelling of 22012110021091 in words is "twenty-two trillion, twelve billion, one hundred ten million, twenty-one thousand, ninety-one".