22121321101727 has 2 divisors, whose sum is σ = 22121321101728. Its totient is φ = 22121321101726.

The previous prime is 22121321101679. The next prime is 22121321101751. The reversal of 22121321101727 is 72710112312122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22121321101727 - 2²⁶ = 22121253992863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22121321101693 and 22121321101702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121321107727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060660550863 + 11060660550864.

It is an arithmetic number, because the mean of its divisors is an integer number (11060660550864).

Almost surely, 2^{22121321101727} is an apocalyptic number.

22121321101727 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121321101727 is an equidigital number, since it uses as much as digits as its factorization.

22121321101727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 32.

Adding to 22121321101727 its reverse (72710112312122), we get a palindrome (94831433413849).

The spelling of 22121321101727 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred twenty-one million, one hundred one thousand, seven hundred twenty-seven".