22100201 has 8 divisors (see below), whose sum is σ = 22411944. Its totient is φ = 21790720.

The previous prime is 22100191. The next prime is 22100203. The reversal of 22100201 is 10200122.

It can be written as a sum of positive squares in 4 ways, for example, as 19600 + 22080601 = 140^2 + 4699^2 .

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 22100201 - 2¹⁰ = 22099177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100203) 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, 28661 + ... + 29421.

It is an arithmetic number, because the mean of its divisors is an integer number (2801493).

Almost surely, 2^22100201 is an apocalyptic number.

It is an amenable number.

22100201 is a deficient number, since it is larger than the sum of its proper divisors (311743).

22100201 is a wasteful number, since it uses less digits than its factorization.

22100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 22100201 is about 4701.0850875091. The cubic root of 22100201 is about 280.6286936087.

Adding to 22100201 its reverse (10200122), we get a palindrome (32300323).

The spelling of 22100201 in words is "twenty-two million, one hundred thousand, two hundred one".