79222322002121 has 2 divisors, whose sum is σ = 79222322002122. Its totient is φ = 79222322002120.

The previous prime is 79222322002081. The next prime is 79222322002127. The reversal of 79222322002121 is 12120022322297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51279849390025 + 27942472612096 = 7160995^2 + 5286064^2 .

It is an emirp because it is prime and its reverse (12120022322297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79222322002121 - 2³⁴ = 79205142132937 is a prime.

It is not a weakly prime, because it can be changed into another prime (79222322002127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39611161001060 + 39611161001061.

It is an arithmetic number, because the mean of its divisors is an integer number (39611161001061).

Almost surely, 2^{79222322002121} is an apocalyptic number.

It is an amenable number.

79222322002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

79222322002121 is an equidigital number, since it uses as much as digits as its factorization.

79222322002121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 79222322002121 in words is "seventy-nine trillion, two hundred twenty-two billion, three hundred twenty-two million, two thousand, one hundred twenty-one".