22098961 has 2 divisors, whose sum is σ = 22098962. Its totient is φ = 22098960.

The previous prime is 22098941. The next prime is 22098971. The reversal of 22098961 is 16989022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 938961 = 4600^2 + 969^2 .

It is a cyclic number.

It is not a de Polignac number, because 22098961 - 2⁹ = 22098449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22098961.

It is not a weakly prime, because it can be changed into another prime (22098911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11049480 + 11049481.

It is an arithmetic number, because the mean of its divisors is an integer number (11049481).

Almost surely, 2^22098961 is an apocalyptic number.

It is an amenable number.

22098961 is a deficient number, since it is larger than the sum of its proper divisors (1).

22098961 is an equidigital number, since it uses as much as digits as its factorization.

22098961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 22098961 is about 4700.9532012136. The cubic root of 22098961 is about 280.6234449974.

The spelling of 22098961 in words is "twenty-two million, ninety-eight thousand, nine hundred sixty-one".