22010199979 has 2 divisors, whose sum is σ = 22010199980. Its totient is φ = 22010199978.

The previous prime is 22010199973. The next prime is 22010199989. The reversal of 22010199979 is 97999101022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22010199979 - 2²¹ = 22008102827 is a prime.

It is not a weakly prime, because it can be changed into another prime (22010199973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005099989 + 11005099990.

It is an arithmetic number, because the mean of its divisors is an integer number (11005099990).

Almost surely, 2^22010199979 is an apocalyptic number.

22010199979 is a deficient number, since it is larger than the sum of its proper divisors (1).

22010199979 is an equidigital number, since it uses as much as digits as its factorization.

22010199979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 49.

The spelling of 22010199979 in words is "twenty-two billion, ten million, one hundred ninety-nine thousand, nine hundred seventy-nine".