2122202120989 has 2 divisors, whose sum is σ = 2122202120990. Its totient is φ = 2122202120988.

The previous prime is 2122202120933. The next prime is 2122202121001. The reversal of 2122202120989 is 9890212022212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2050409205625 + 71792915364 = 1431925^2 + 267942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122202120989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122202121989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061101060494 + 1061101060495.

It is an arithmetic number, because the mean of its divisors is an integer number (1061101060495).

Almost surely, 2^{2122202120989} is an apocalyptic number.

It is an amenable number.

2122202120989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122202120989 is an equidigital number, since it uses as much as digits as its factorization.

2122202120989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 2122202120989 in words is "two trillion, one hundred twenty-two billion, two hundred two million, one hundred twenty thousand, nine hundred eighty-nine".