222003221 has 16 divisors (see below), whose sum is σ = 259096320. Its totient is φ = 187975680.

The previous prime is 222003209. The next prime is 222003241. The reversal of 222003221 is 122300222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222003221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222003196 and 222003205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222003241) 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, 12020 + ... + 24258.

It is an arithmetic number, because the mean of its divisors is an integer number (16193520).

Almost surely, 2^222003221 is an apocalyptic number.

It is an amenable number.

222003221 is a deficient number, since it is larger than the sum of its proper divisors (37093099).

222003221 is a wasteful number, since it uses less digits than its factorization.

222003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12364.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 222003221 is about 14899.7725150420. The cubic root of 222003221 is about 605.5078230623.

Adding to 222003221 its reverse (122300222), we get a palindrome (344303443).

The spelling of 222003221 in words is "two hundred twenty-two million, three thousand, two hundred twenty-one".