22279201 has 4 divisors (see below), whose sum is σ = 25461952. Its totient is φ = 19096452.

The previous prime is 22279199. The next prime is 22279247. The reversal of 22279201 is 10297222.

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 a cyclic number.

It is not a de Polignac number, because 22279201 - 2¹ = 22279199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22279601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1591365 + ... + 1591378.

It is an arithmetic number, because the mean of its divisors is an integer number (6365488).

Almost surely, 2^22279201 is an apocalyptic number.

It is an amenable number.

22279201 is a deficient number, since it is larger than the sum of its proper divisors (3182751).

22279201 is an equidigital number, since it uses as much as digits as its factorization.

22279201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182750.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 22279201 is about 4720.0848509322. The cubic root of 22279201 is about 281.3843055009.

The spelling of 22279201 in words is "twenty-two million, two hundred seventy-nine thousand, two hundred one".