22257201 has 4 divisors (see below), whose sum is σ = 29676272. Its totient is φ = 14838132.

The previous prime is 22257149. The next prime is 22257203. The reversal of 22257201 is 10275222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22257201 - 2¹¹ = 22255153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22257203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3709531 + ... + 3709536.

It is an arithmetic number, because the mean of its divisors is an integer number (7419068).

Almost surely, 2^22257201 is an apocalyptic number.

It is an amenable number.

22257201 is a deficient number, since it is larger than the sum of its proper divisors (7419071).

22257201 is an equidigital number, since it uses as much as digits as its factorization.

22257201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7419070.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 22257201 is about 4717.7538087526. The cubic root of 22257201 is about 281.2916556573.

The spelling of 22257201 in words is "twenty-two million, two hundred fifty-seven thousand, two hundred one".