22121022011191 has 2 divisors, whose sum is σ = 22121022011192. Its totient is φ = 22121022011190.

The previous prime is 22121022011189. The next prime is 22121022011243. The reversal of 22121022011191 is 19111022012122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22121022011191 - 2¹ = 22121022011189 is a prime.

It is a super-2 number, since 2×22121022011191² (a number of 27 digits) contains 22 as substring.

Together with 22121022011189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121022011111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060511005595 + 11060511005596.

It is an arithmetic number, because the mean of its divisors is an integer number (11060511005596).

Almost surely, 2^{22121022011191} is an apocalyptic number.

22121022011191 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121022011191 is an equidigital number, since it uses as much as digits as its factorization.

22121022011191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 22121022011191 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-two million, eleven thousand, one hundred ninety-one".