20122201221079 has 2 divisors, whose sum is σ = 20122201221080. Its totient is φ = 20122201221078.

The previous prime is 20122201221071. The next prime is 20122201221121. The reversal of 20122201221079 is 97012210222102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20122201221079 - 2³ = 20122201221071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122201221079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122201221071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061100610539 + 10061100610540.

It is an arithmetic number, because the mean of its divisors is an integer number (10061100610540).

Almost surely, 2^{20122201221079} is an apocalyptic number.

20122201221079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122201221079 is an equidigital number, since it uses as much as digits as its factorization.

20122201221079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 20122201221079 in words is "twenty trillion, one hundred twenty-two billion, two hundred one million, two hundred twenty-one thousand, seventy-nine".