22190670521 has 2 divisors, whose sum is σ = 22190670522. Its totient is φ = 22190670520.

The previous prime is 22190670517. The next prime is 22190670539. The reversal of 22190670521 is 12507609122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14258986921 + 7931683600 = 119411^2 + 89060^2 .

It is a cyclic number.

It is not a de Polignac number, because 22190670521 - 2² = 22190670517 is a prime.

It is a super-2 number, since 2×22190670521² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22190670581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11095335260 + 11095335261.

It is an arithmetic number, because the mean of its divisors is an integer number (11095335261).

Almost surely, 2^22190670521 is an apocalyptic number.

It is an amenable number.

22190670521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22190670521 is an equidigital number, since it uses as much as digits as its factorization.

22190670521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 22190670521 in words is "twenty-two billion, one hundred ninety million, six hundred seventy thousand, five hundred twenty-one".