222204001 has 4 divisors (see below), whose sum is σ = 229371904. Its totient is φ = 215036100.

The previous prime is 222203987. The next prime is 222204007. The reversal of 222204001 is 100402222.

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 222204001 - 2⁷ = 222203873 is a prime.

It is a super-4 number, since 4×222204001⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222204007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3583905 + ... + 3583966.

It is an arithmetic number, because the mean of its divisors is an integer number (57342976).

Almost surely, 2^222204001 is an apocalyptic number.

It is an amenable number.

222204001 is a deficient number, since it is larger than the sum of its proper divisors (7167903).

222204001 is an equidigital number, since it uses as much as digits as its factorization.

222204001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7167902.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 222204001 is about 14906.5086790972. The cubic root of 222204001 is about 605.6903087458.

Adding to 222204001 its reverse (100402222), we get a palindrome (322606223).

The spelling of 222204001 in words is "two hundred twenty-two million, two hundred four thousand, one".