2122130221091 has 2 divisors, whose sum is σ = 2122130221092. Its totient is φ = 2122130221090.

The previous prime is 2122130221069. The next prime is 2122130221129. The reversal of 2122130221091 is 1901220312212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122130221091 - 2¹⁴ = 2122130204707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2122130221091.

It is not a weakly prime, because it can be changed into another prime (2122130221061) 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, 1061065110545 + 1061065110546.

It is an arithmetic number, because the mean of its divisors is an integer number (1061065110546).

Almost surely, 2^{2122130221091} is an apocalyptic number.

2122130221091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122130221091 is an equidigital number, since it uses as much as digits as its factorization.

2122130221091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 2122130221091 in words is "two trillion, one hundred twenty-two billion, one hundred thirty million, two hundred twenty-one thousand, ninety-one".