22321854564557 has 2 divisors, whose sum is σ = 22321854564558. Its totient is φ = 22321854564556.

The previous prime is 22321854564547. The next prime is 22321854564563. The reversal of 22321854564557 is 75546545812322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18267708557476 + 4054146007081 = 4274074^2 + 2013491^2 .

It is a cyclic number.

It is not a de Polignac number, because 22321854564557 - 2¹⁸ = 22321854302413 is a prime.

It is a super-3 number, since 3×22321854564557³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22321854564496 and 22321854564505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22321854564547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11160927282278 + 11160927282279.

It is an arithmetic number, because the mean of its divisors is an integer number (11160927282279).

Almost surely, 2^{22321854564557} is an apocalyptic number.

It is an amenable number.

22321854564557 is a deficient number, since it is larger than the sum of its proper divisors (1).

22321854564557 is an equidigital number, since it uses as much as digits as its factorization.

22321854564557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640000, while the sum is 59.

The spelling of 22321854564557 in words is "twenty-two trillion, three hundred twenty-one billion, eight hundred fifty-four million, five hundred sixty-four thousand, five hundred fifty-seven".