22919950997 has 2 divisors, whose sum is σ = 22919950998. Its totient is φ = 22919950996.

The previous prime is 22919950939. The next prime is 22919951003. The reversal of 22919950997 is 79905991922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19031306116 + 3888644881 = 137954^2 + 62359^2 .

It is a cyclic number.

It is not a de Polignac number, because 22919950997 - 2¹² = 22919946901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22919950897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11459975498 + 11459975499.

It is an arithmetic number, because the mean of its divisors is an integer number (11459975499).

Almost surely, 2^22919950997 is an apocalyptic number.

It is an amenable number.

22919950997 is a deficient number, since it is larger than the sum of its proper divisors (1).

22919950997 is an equidigital number, since it uses as much as digits as its factorization.

22919950997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8266860, while the sum is 62.

The spelling of 22919950997 in words is "twenty-two billion, nine hundred nineteen million, nine hundred fifty thousand, nine hundred ninety-seven".