21022246289 has 16 divisors (see below), whose sum is σ = 23141536704. Its totient is φ = 18938438400.

The previous prime is 21022246283. The next prime is 21022246313. The reversal of 21022246289 is 98264222012.

It is a cyclic number.

It is not a de Polignac number, because 21022246289 - 2²⁴ = 21005469073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022246283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521357 + ... + 560229.

It is an arithmetic number, because the mean of its divisors is an integer number (1446346044).

Almost surely, 2^21022246289 is an apocalyptic number.

It is an amenable number.

21022246289 is a deficient number, since it is larger than the sum of its proper divisors (2119290415).

21022246289 is a wasteful number, since it uses less digits than its factorization.

21022246289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39328.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 21022246289 in words is "twenty-one billion, twenty-two million, two hundred forty-six thousand, two hundred eighty-nine".