222221002211 has 8 divisors (see below), whose sum is σ = 239319178224. Its totient is φ = 205123433760.

The previous prime is 222221002183. The next prime is 222221002253. The reversal of 222221002211 is 112200122222.

It is a happy number.

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 222221002211 - 2¹⁸ = 222220740067 is a prime.

It is a super-2 number, since 2×222221002211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222221002211.

It is not an unprimeable number, because it can be changed into a prime (222221002411) 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, 855041 + ... + 1084221.

It is an arithmetic number, because the mean of its divisors is an integer number (29914897278).

Almost surely, 2^222221002211 is an apocalyptic number.

222221002211 is a deficient number, since it is larger than the sum of its proper divisors (17098176013).

222221002211 is a wasteful number, since it uses less digits than its factorization.

222221002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303781.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222221002211 its reverse (112200122222), we get a palindrome (334421124433).

The spelling of 222221002211 in words is "two hundred twenty-two billion, two hundred twenty-one million, two thousand, two hundred eleven".