22147201 has 8 divisors (see below), whose sum is σ = 22806080. Its totient is φ = 21491568.

The previous prime is 22147159. The next prime is 22147207. The reversal of 22147201 is 10274122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22147201 - 2¹¹ = 22145153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22147207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22420 + ... + 23386.

It is an arithmetic number, because the mean of its divisors is an integer number (2850760).

Almost surely, 2^22147201 is an apocalyptic number.

It is an amenable number.

22147201 is a deficient number, since it is larger than the sum of its proper divisors (658879).

22147201 is an equidigital number, since it uses as much as digits as its factorization.

22147201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 22147201 is about 4706.0812785161. The cubic root of 22147201 is about 280.8274883264.

The spelling of 22147201 in words is "twenty-two million, one hundred forty-seven thousand, two hundred one".