22202257 has 16 divisors (see below), whose sum is σ = 28432512. Its totient is φ = 16830720.

The previous prime is 22202249. The next prime is 22202261. The reversal of 22202257 is 75220222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22202257 - 2³ = 22202249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22202657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048 + ... + 6745.

It is an arithmetic number, because the mean of its divisors is an integer number (1777032).

Almost surely, 2^22202257 is an apocalyptic number.

It is an amenable number.

22202257 is a deficient number, since it is larger than the sum of its proper divisors (6230255).

22202257 is a wasteful number, since it uses less digits than its factorization.

22202257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7848.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 22202257 is about 4711.9271004548. The cubic root of 22202257 is about 281.0599999366.

Adding to 22202257 its reverse (75220222), we get a palindrome (97422479).

The spelling of 22202257 in words is "twenty-two million, two hundred two thousand, two hundred fifty-seven".