22202104121 has 2 divisors, whose sum is σ = 22202104122. Its totient is φ = 22202104120.

The previous prime is 22202104081. The next prime is 22202104157. The reversal of 22202104121 is 12140120222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20347596025 + 1854508096 = 142645^2 + 43064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22202104121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22202104121.

It is not a weakly prime, because it can be changed into another prime (22202104021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101052060 + 11101052061.

It is an arithmetic number, because the mean of its divisors is an integer number (11101052061).

Almost surely, 2^22202104121 is an apocalyptic number.

It is an amenable number.

22202104121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202104121 is an equidigital number, since it uses as much as digits as its factorization.

22202104121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22202104121 its reverse (12140120222), we get a palindrome (34342224343).

The spelling of 22202104121 in words is "twenty-two billion, two hundred two million, one hundred four thousand, one hundred twenty-one".