22112321302121 has 2 divisors, whose sum is σ = 22112321302122. Its totient is φ = 22112321302120.

The previous prime is 22112321302073. The next prime is 22112321302129. The reversal of 22112321302121 is 12120312321122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12808668366400 + 9303652935721 = 3578920^2 + 3050189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112321302121 is a prime.

It is not a weakly prime, because it can be changed into another prime (22112321302129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056160651060 + 11056160651061.

It is an arithmetic number, because the mean of its divisors is an integer number (11056160651061).

Almost surely, 2^{22112321302121} is an apocalyptic number.

It is an amenable number.

22112321302121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112321302121 is an equidigital number, since it uses as much as digits as its factorization.

22112321302121 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 23.

Adding to 22112321302121 its reverse (12120312321122), we get a palindrome (34232633623243).

The spelling of 22112321302121 in words is "twenty-two trillion, one hundred twelve billion, three hundred twenty-one million, three hundred two thousand, one hundred twenty-one".