22619940901 has 2 divisors, whose sum is σ = 22619940902. Its totient is φ = 22619940900.

The previous prime is 22619940881. The next prime is 22619940913. The reversal of 22619940901 is 10904991622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20952852001 + 1667088900 = 144751^2 + 40830^2 .

It is a cyclic number.

It is not a de Polignac number, because 22619940901 - 2⁷ = 22619940773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22619940961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11309970450 + 11309970451.

It is an arithmetic number, because the mean of its divisors is an integer number (11309970451).

Almost surely, 2^22619940901 is an apocalyptic number.

It is an amenable number.

22619940901 is a deficient number, since it is larger than the sum of its proper divisors (1).

22619940901 is an equidigital number, since it uses as much as digits as its factorization.

22619940901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 22619940901 in words is "twenty-two billion, six hundred nineteen million, nine hundred forty thousand, nine hundred one".