222221112102210 has 48 divisors (see below), whose sum is σ = 577511907914304. Its totient is φ = 54700581439296.

The previous prime is 222221112102181. The next prime is 222221112102331. The reversal of 222221112102210 is 12201211122222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21915291982 + ... + 21915302121.

It is an arithmetic number, because the mean of its divisors is an integer number (12031498081548).

Almost surely, 2^{222221112102210} is an apocalyptic number.

222221112102210 is an abundant number, since it is smaller than the sum of its proper divisors (355290795812094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222221112102210 is a wasteful number, since it uses less digits than its factorization.

222221112102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43830594139 (or 43830594126 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222221112102210 its reverse (12201211122222), we get a palindrome (234422323224432).

The spelling of 222221112102210 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twelve million, one hundred two thousand, two hundred ten".