22199747 has 2 divisors, whose sum is σ = 22199748. Its totient is φ = 22199746.

The previous prime is 22199743. The next prime is 22199767. The reversal of 22199747 is 74799122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22199747 - 2² = 22199743 is a prime.

It is not a weakly prime, because it can be changed into another prime (22199743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11099873 + 11099874.

It is an arithmetic number, because the mean of its divisors is an integer number (11099874).

Almost surely, 2^22199747 is an apocalyptic number.

22199747 is a deficient number, since it is larger than the sum of its proper divisors (1).

22199747 is an equidigital number, since it uses as much as digits as its factorization.

22199747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 22199747 is about 4711.6607475496. The cubic root of 22199747 is about 281.0494081128.

The spelling of 22199747 in words is "twenty-two million, one hundred ninety-nine thousand, seven hundred forty-seven".