21110022259 has 2 divisors, whose sum is σ = 21110022260. Its totient is φ = 21110022258.

The previous prime is 21110022203. The next prime is 21110022299. The reversal of 21110022259 is 95222001112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21110022259 - 2⁹ = 21110021747 is a prime.

It is not a weakly prime, because it can be changed into another prime (21110022299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555011129 + 10555011130.

It is an arithmetic number, because the mean of its divisors is an integer number (10555011130).

Almost surely, 2^21110022259 is an apocalyptic number.

21110022259 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110022259 is an equidigital number, since it uses as much as digits as its factorization.

21110022259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 21110022259 in words is "twenty-one billion, one hundred ten million, twenty-two thousand, two hundred fifty-nine".