22990541281 has 2 divisors, whose sum is σ = 22990541282. Its totient is φ = 22990541280.

The previous prime is 22990541279. The next prime is 22990541359. The reversal of 22990541281 is 18214509922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22480504225 + 510037056 = 149935^2 + 22584^2 .

It is a cyclic number.

It is not a de Polignac number, because 22990541281 - 2¹ = 22990541279 is a prime.

It is a super-2 number, since 2×22990541281² (a number of 22 digits) contains 22 as substring.

Together with 22990541279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22990541261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11495270640 + 11495270641.

It is an arithmetic number, because the mean of its divisors is an integer number (11495270641).

Almost surely, 2^22990541281 is an apocalyptic number.

It is an amenable number.

22990541281 is a deficient number, since it is larger than the sum of its proper divisors (1).

22990541281 is an equidigital number, since it uses as much as digits as its factorization.

22990541281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 22990541281 in words is "twenty-two billion, nine hundred ninety million, five hundred forty-one thousand, two hundred eighty-one".