222221102211 has 16 divisors (see below), whose sum is σ = 329292078720. Its totient is φ = 148113367560.

The previous prime is 222221102171. The next prime is 222221102239. The reversal of 222221102211 is 112201122222.

It is a happy number.

222221102211 is a `hidden beast` number, since 222 + 221 + 1 + 0 + 221 + 1 = 666.

It is not a de Polignac number, because 222221102211 - 2⁷ = 222221102083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222221102011) 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, 825405 + ... + 1061006.

It is an arithmetic number, because the mean of its divisors is an integer number (20580754920).

Almost surely, 2^222221102211 is an apocalyptic number.

222221102211 is a deficient number, since it is larger than the sum of its proper divisors (107070976509).

222221102211 is a wasteful number, since it uses less digits than its factorization.

222221102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890783 (or 1890777 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222221102211 its reverse (112201122222), we get a palindrome (334422224433).

The spelling of 222221102211 in words is "two hundred twenty-two billion, two hundred twenty-one million, one hundred two thousand, two hundred eleven".