222200221 has 8 divisors (see below), whose sum is σ = 231660000. Its totient is φ = 212935632.

The previous prime is 222200191. The next prime is 222200227. The reversal of 222200221 is 122002222.

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 222200221 - 2⁵ = 222200189 is a prime.

It is a super-3 number, since 3×222200221³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200227) 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, 46471 + ... + 51028.

It is an arithmetic number, because the mean of its divisors is an integer number (28957500).

Almost surely, 2^222200221 is an apocalyptic number.

It is an amenable number.

222200221 is a deficient number, since it is larger than the sum of its proper divisors (9459779).

222200221 is an equidigital number, since it uses as much as digits as its factorization.

222200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97595.

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

The square root of 222200221 is about 14906.3818883054. The cubic root of 222200221 is about 605.6868741807.

Adding to 222200221 its reverse (122002222), we get a palindrome (344202443).

The spelling of 222200221 in words is "two hundred twenty-two million, two hundred thousand, two hundred twenty-one".