22121321232799 has 2 divisors, whose sum is σ = 22121321232800. Its totient is φ = 22121321232798.

The previous prime is 22121321232781. The next prime is 22121321232809. The reversal of 22121321232799 is 99723212312122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22121321232799 - 2¹⁷ = 22121321101727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121321232719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060660616399 + 11060660616400.

It is an arithmetic number, because the mean of its divisors is an integer number (11060660616400).

Almost surely, 2^{22121321232799} is an apocalyptic number.

22121321232799 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121321232799 is an equidigital number, since it uses as much as digits as its factorization.

22121321232799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The spelling of 22121321232799 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred thirty-two thousand, seven hundred ninety-nine".