22197503879 has 2 divisors, whose sum is σ = 22197503880. Its totient is φ = 22197503878.

The previous prime is 22197503827. The next prime is 22197503917. The reversal of 22197503879 is 97830579122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22197503879 - 2⁸ = 22197503623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22197503879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22197503579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11098751939 + 11098751940.

It is an arithmetic number, because the mean of its divisors is an integer number (11098751940).

Almost surely, 2^22197503879 is an apocalyptic number.

22197503879 is a deficient number, since it is larger than the sum of its proper divisors (1).

22197503879 is an equidigital number, since it uses as much as digits as its factorization.

22197503879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 22197503879 in words is "twenty-two billion, one hundred ninety-seven million, five hundred three thousand, eight hundred seventy-nine".