22121321233313 has 2 divisors, whose sum is σ = 22121321233314. Its totient is φ = 22121321233312.

The previous prime is 22121321233273. The next prime is 22121321233327. The reversal of 22121321233313 is 31333212312122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19461085206784 + 2660236026529 = 4411472^2 + 1631023^2 .

It is a cyclic number.

It is not a de Polignac number, because 22121321233313 - 2⁸ = 22121321233057 is a prime.

It is not a weakly prime, because it can be changed into another prime (22121321433313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060660616656 + 11060660616657.

It is an arithmetic number, because the mean of its divisors is an integer number (11060660616657).

Almost surely, 2^{22121321233313} is an apocalyptic number.

It is an amenable number.

22121321233313 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121321233313 is an equidigital number, since it uses as much as digits as its factorization.

22121321233313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

Adding to 22121321233313 its reverse (31333212312122), we get a palindrome (53454533545435).

The spelling of 22121321233313 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred thirty-three thousand, three hundred thirteen".