22404130220321 has 2 divisors, whose sum is σ = 22404130220322. Its totient is φ = 22404130220320.

The previous prime is 22404130220159. The next prime is 22404130220327. The reversal of 22404130220321 is 12302203140422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19250717854096 + 3153412366225 = 4387564^2 + 1775785^2 .

It is a cyclic number.

It is not a de Polignac number, because 22404130220321 - 2²² = 22404126026017 is a prime.

It is not a weakly prime, because it can be changed into another prime (22404130220327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11202065110160 + 11202065110161.

It is an arithmetic number, because the mean of its divisors is an integer number (11202065110161).

Almost surely, 2^{22404130220321} is an apocalyptic number.

It is an amenable number.

22404130220321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22404130220321 is an equidigital number, since it uses as much as digits as its factorization.

22404130220321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 22404130220321 its reverse (12302203140422), we get a palindrome (34706333360743).

The spelling of 22404130220321 in words is "twenty-two trillion, four hundred four billion, one hundred thirty million, two hundred twenty thousand, three hundred twenty-one".