22244116997 has 4 divisors (see below), whose sum is σ = 22244415936. Its totient is φ = 22243818060.

The previous prime is 22244116969. The next prime is 22244117017. The reversal of 22244116997 is 79961144222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22244116997 - 2⁶ = 22244116933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244116967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59972 + ... + 219282.

It is an arithmetic number, because the mean of its divisors is an integer number (5561103984).

Almost surely, 2^22244116997 is an apocalyptic number.

It is an amenable number.

22244116997 is a deficient number, since it is larger than the sum of its proper divisors (298939).

22244116997 is a wasteful number, since it uses less digits than its factorization.

22244116997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298938.

The product of its digits is 435456, while the sum is 47.

The spelling of 22244116997 in words is "twenty-two billion, two hundred forty-four million, one hundred sixteen thousand, nine hundred ninety-seven".