22021613659 has 2 divisors, whose sum is σ = 22021613660. Its totient is φ = 22021613658.

The previous prime is 22021613501. The next prime is 22021613687. The reversal of 22021613659 is 95631612022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22021613659 - 2⁹ = 22021613147 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021613359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010806829 + 11010806830.

It is an arithmetic number, because the mean of its divisors is an integer number (11010806830).

Almost surely, 2^22021613659 is an apocalyptic number.

22021613659 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021613659 is an equidigital number, since it uses as much as digits as its factorization.

22021613659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 22021613659 in words is "twenty-two billion, twenty-one million, six hundred thirteen thousand, six hundred fifty-nine".