13222333121 has 2 divisors, whose sum is σ = 13222333122. Its totient is φ = 13222333120.

The previous prime is 13222333057. The next prime is 13222333133. The reversal of 13222333121 is 12133322231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11546577025 + 1675756096 = 107455^2 + 40936^2 .

It is a cyclic number.

It is not a de Polignac number, because 13222333121 - 2⁶ = 13222333057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13222333021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611166560 + 6611166561.

It is an arithmetic number, because the mean of its divisors is an integer number (6611166561).

Almost surely, 2^13222333121 is an apocalyptic number.

It is an amenable number.

13222333121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13222333121 is an equidigital number, since it uses as much as digits as its factorization.

13222333121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

Adding to 13222333121 its reverse (12133322231), we get a palindrome (25355655352).

The spelling of 13222333121 in words is "thirteen billion, two hundred twenty-two million, three hundred thirty-three thousand, one hundred twenty-one".