22126889 has 2 divisors, whose sum is σ = 22126890. Its totient is φ = 22126888.

The previous prime is 22126861. The next prime is 22126903. The reversal of 22126889 is 98862122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18421264 + 3705625 = 4292^2 + 1925^2 .

It is a cyclic number.

It is not a de Polignac number, because 22126889 - 2¹⁶ = 22061353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22126189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11063444 + 11063445.

It is an arithmetic number, because the mean of its divisors is an integer number (11063445).

Almost surely, 2^22126889 is an apocalyptic number.

It is an amenable number.

22126889 is a deficient number, since it is larger than the sum of its proper divisors (1).

22126889 is an equidigital number, since it uses as much as digits as its factorization.

22126889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 22126889 is about 4703.9227247054. The cubic root of 22126889 is about 280.7416097141.

The spelling of 22126889 in words is "twenty-two million, one hundred twenty-six thousand, eight hundred eighty-nine".