22002200021209 has 2 divisors, whose sum is σ = 22002200021210. Its totient is φ = 22002200021208.

The previous prime is 22002200021201. The next prime is 22002200021233. The reversal of 22002200021209 is 90212000220022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20147278599184 + 1854921422025 = 4488572^2 + 1361955^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002200021209 - 2³ = 22002200021201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22002200021209.

It is not a weakly prime, because it can be changed into another prime (22002200021201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001100010604 + 11001100010605.

It is an arithmetic number, because the mean of its divisors is an integer number (11001100010605).

Almost surely, 2^{22002200021209} is an apocalyptic number.

It is an amenable number.

22002200021209 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002200021209 is an equidigital number, since it uses as much as digits as its factorization.

22002200021209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 22002200021209 in words is "twenty-two trillion, two billion, two hundred million, twenty-one thousand, two hundred nine".