22197079 has 2 divisors, whose sum is σ = 22197080. Its totient is φ = 22197078.

The previous prime is 22197067. The next prime is 22197083. The reversal of 22197079 is 97079122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22197079 - 2¹¹ = 22195031 is a prime.

It is a super-2 number, since 2×22197079² = 985420632264482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22197059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11098539 + 11098540.

It is an arithmetic number, because the mean of its divisors is an integer number (11098540).

Almost surely, 2^22197079 is an apocalyptic number.

22197079 is a deficient number, since it is larger than the sum of its proper divisors (1).

22197079 is an equidigital number, since it uses as much as digits as its factorization.

22197079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 22197079 is about 4711.3776116970. The cubic root of 22197079 is about 281.0381486772.

The spelling of 22197079 in words is "twenty-two million, one hundred ninety-seven thousand, seventy-nine".