22919946901 has 2 divisors, whose sum is σ = 22919946902. Its totient is φ = 22919946900.

The previous prime is 22919946887. The next prime is 22919946949. The reversal of 22919946901 is 10964991922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22617152100 + 302794801 = 150390^2 + 17401^2 .

It is a cyclic number.

It is not a de Polignac number, because 22919946901 - 2⁵ = 22919946869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22919946991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11459973450 + 11459973451.

It is an arithmetic number, because the mean of its divisors is an integer number (11459973451).

Almost surely, 2^22919946901 is an apocalyptic number.

It is an amenable number.

22919946901 is a deficient number, since it is larger than the sum of its proper divisors (1).

22919946901 is an equidigital number, since it uses as much as digits as its factorization.

22919946901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 52.

The spelling of 22919946901 in words is "twenty-two billion, nine hundred nineteen million, nine hundred forty-six thousand, nine hundred one".