22012212122191 has 2 divisors, whose sum is σ = 22012212122192. Its totient is φ = 22012212122190.

The previous prime is 22012212122137. The next prime is 22012212122267. The reversal of 22012212122191 is 19122121221022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22012212122191 - 2⁷ = 22012212122063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012212122491) 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 as a sum of consecutive naturals, namely, 11006106061095 + 11006106061096.

It is an arithmetic number, because the mean of its divisors is an integer number (11006106061096).

Almost surely, 2^{22012212122191} is an apocalyptic number.

22012212122191 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012212122191 is an equidigital number, since it uses as much as digits as its factorization.

22012212122191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 22012212122191 in words is "twenty-two trillion, twelve billion, two hundred twelve million, one hundred twenty-two thousand, one hundred ninety-one".