22720435019 has 2 divisors, whose sum is σ = 22720435020. Its totient is φ = 22720435018.

The previous prime is 22720434983. The next prime is 22720435097. The reversal of 22720435019 is 91053402722.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22720435019 - 2¹² = 22720430923 is a prime.

It is a super-2 number, since 2×22720435019² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22720435019.

It is not a weakly prime, because it can be changed into another prime (22720435099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11360217509 + 11360217510.

It is an arithmetic number, because the mean of its divisors is an integer number (11360217510).

Almost surely, 2^22720435019 is an apocalyptic number.

22720435019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22720435019 is an equidigital number, since it uses as much as digits as its factorization.

22720435019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 22720435019 in words is "twenty-two billion, seven hundred twenty million, four hundred thirty-five thousand, nineteen".