22225601 has 2 divisors, whose sum is σ = 22225602. Its totient is φ = 22225600.

The previous prime is 22225597. The next prime is 22225607. The reversal of 22225601 is 10652222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14250625 + 7974976 = 3775^2 + 2824^2 .

It is a cyclic number.

It is not a de Polignac number, because 22225601 - 2² = 22225597 is a prime.

It is a super-2 number, since 2×22225601² = 987954679622402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22225607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11112800 + 11112801.

It is an arithmetic number, because the mean of its divisors is an integer number (11112801).

Almost surely, 2^22225601 is an apocalyptic number.

It is an amenable number.

22225601 is a deficient number, since it is larger than the sum of its proper divisors (1).

22225601 is an equidigital number, since it uses as much as digits as its factorization.

22225601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 22225601 is about 4714.4035677909. The cubic root of 22225601 is about 281.1584699029.

Adding to 22225601 its reverse (10652222), we get a palindrome (32877823).

The spelling of 22225601 in words is "twenty-two million, two hundred twenty-five thousand, six hundred one".