2122212012091 has 2 divisors, whose sum is σ = 2122212012092. Its totient is φ = 2122212012090.

The previous prime is 2122212012001. The next prime is 2122212012119. The reversal of 2122212012091 is 1902102122212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122212012091 - 2⁷ = 2122212011963 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122212012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061106006045 + 1061106006046.

It is an arithmetic number, because the mean of its divisors is an integer number (1061106006046).

Almost surely, 2^{2122212012091} is an apocalyptic number.

2122212012091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122212012091 is an equidigital number, since it uses as much as digits as its factorization.

2122212012091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 2122212012091 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, twelve thousand, ninety-one".