22100497 has 2 divisors, whose sum is σ = 22100498. Its totient is φ = 22100496.

The previous prime is 22100479. The next prime is 22100501. The reversal of 22100497 is 79400122.

Together with previous prime (22100479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13315201 + 8785296 = 3649^2 + 2964^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100497 - 2¹¹ = 22098449 is a prime.

It is not a weakly prime, because it can be changed into another prime (22100437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050248 + 11050249.

It is an arithmetic number, because the mean of its divisors is an integer number (11050249).

Almost surely, 2^22100497 is an apocalyptic number.

It is an amenable number.

22100497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100497 is an equidigital number, since it uses as much as digits as its factorization.

22100497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 22100497 is about 4701.1165694971. The cubic root of 22100497 is about 280.6299464739.

The spelling of 22100497 in words is "twenty-two million, one hundred thousand, four hundred ninety-seven".