20022221759 has 2 divisors, whose sum is σ = 20022221760. Its totient is φ = 20022221758.

The previous prime is 20022221741. The next prime is 20022221761. The reversal of 20022221759 is 95712222002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20022221759 - 2¹⁶ = 20022156223 is a prime.

Together with 20022221761, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022221159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011110879 + 10011110880.

It is an arithmetic number, because the mean of its divisors is an integer number (10011110880).

Almost surely, 2^20022221759 is an apocalyptic number.

20022221759 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022221759 is an equidigital number, since it uses as much as digits as its factorization.

20022221759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 20022221759 in words is "twenty billion, twenty-two million, two hundred twenty-one thousand, seven hundred fifty-nine".