22130201 has 4 divisors (see below), whose sum is σ = 22670004. Its totient is φ = 21590400.

The previous prime is 22130179. The next prime is 22130221. The reversal of 22130201 is 10203122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 274576 + 21855625 = 524^2 + 4675^2 .

It is a cyclic number.

It is not a de Polignac number, because 22130201 - 2⁶ = 22130137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22130221) 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, 269840 + ... + 269921.

It is an arithmetic number, because the mean of its divisors is an integer number (5667501).

Almost surely, 2^22130201 is an apocalyptic number.

It is an amenable number.

22130201 is a deficient number, since it is larger than the sum of its proper divisors (539803).

22130201 is an equidigital number, since it uses as much as digits as its factorization.

22130201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539802.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 22130201 is about 4704.2747581322. The cubic root of 22130201 is about 280.7556163498.

Adding to 22130201 its reverse (10203122), we get a palindrome (32333323).

The spelling of 22130201 in words is "twenty-two million, one hundred thirty thousand, two hundred one".