222221100211110 has 512 divisors, whose sum is σ = 812573437132800. Its totient is φ = 41716935083520.

The previous prime is 222221100211109. The next prime is 222221100211163. The reversal of 222221100211110 is 11112001122222.

222221100211110 is a `hidden beast` number, since 2 + 22 + 221 + 100 + 211 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3955681 + ... + 21449699.

It is an arithmetic number, because the mean of its divisors is an integer number (1587057494400).

Almost surely, 2^{222221100211110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222221100211110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406286718566400).

222221100211110 is an abundant number, since it is smaller than the sum of its proper divisors (590352336921690).

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

222221100211110 is a wasteful number, since it uses less digits than its factorization.

222221100211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17494113 (or 17494107 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222221100211110 its reverse (11112001122222), we get a palindrome (233333101333332).

The spelling of 222221100211110 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred million, two hundred eleven thousand, one hundred ten".