22045801 has 2 divisors, whose sum is σ = 22045802. Its totient is φ = 22045800.

The previous prime is 22045759. The next prime is 22045813. The reversal of 22045801 is 10854022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17640000 + 4405801 = 4200^2 + 2099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22045801 is a prime.

It is not a weakly prime, because it can be changed into another prime (22045841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11022900 + 11022901.

It is an arithmetic number, because the mean of its divisors is an integer number (11022901).

Almost surely, 2^22045801 is an apocalyptic number.

It is an amenable number.

22045801 is a deficient number, since it is larger than the sum of its proper divisors (1).

22045801 is an equidigital number, since it uses as much as digits as its factorization.

22045801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 22045801 is about 4695.2956243457. The cubic root of 22045801 is about 280.3982470758.

Adding to 22045801 its reverse (10854022), we get a palindrome (32899823).

The spelling of 22045801 in words is "twenty-two million, forty-five thousand, eight hundred one".