222321001 has 16 divisors (see below), whose sum is σ = 256760064. Its totient is φ = 188564544.

The previous prime is 222320953. The next prime is 222321007. The reversal of 222321001 is 100123222.

It is not a de Polignac number, because 222321001 - 2²³ = 213932393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222321007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362371 + ... + 362983.

It is an arithmetic number, because the mean of its divisors is an integer number (16047504).

Almost surely, 2^222321001 is an apocalyptic number.

It is an amenable number.

222321001 is a deficient number, since it is larger than the sum of its proper divisors (34439063).

222321001 is a wasteful number, since it uses less digits than its factorization.

222321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 222321001 is about 14910.4326228316. The cubic root of 222321001 is about 605.7965974587.

Adding to 222321001 its reverse (100123222), we get a palindrome (322444223).

The spelling of 222321001 in words is "two hundred twenty-two million, three hundred twenty-one thousand, one".