222100201 has 4 divisors (see below), whose sum is σ = 222136132. Its totient is φ = 222064272.

The previous prime is 222100199. The next prime is 222100211. The reversal of 222100201 is 102001222.

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 145082025 + 77018176 = 12045^2 + 8776^2 .

It is a cyclic number.

It is not a de Polignac number, because 222100201 - 2¹ = 222100199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222100211) 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, 6066 + ... + 21931.

It is an arithmetic number, because the mean of its divisors is an integer number (55534033).

Almost surely, 2^222100201 is an apocalyptic number.

It is an amenable number.

222100201 is a deficient number, since it is larger than the sum of its proper divisors (35931).

222100201 is an equidigital number, since it uses as much as digits as its factorization.

222100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35930.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 222100201 is about 14903.0265718075. The cubic root of 222100201 is about 605.5959803418.

Adding to 222100201 its reverse (102001222), we get a palindrome (324101423).

The spelling of 222100201 in words is "two hundred twenty-two million, one hundred thousand, two hundred one".