222612216222 has 192 divisors, whose sum is σ = 516175894080. Its totient is φ = 63866880000.

The previous prime is 222612216191. The next prime is 222612216241.

222612216222 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×222612216222² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 222612216222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 370402722 + ... + 370403322.

It is an arithmetic number, because the mean of its divisors is an integer number (2688416115).

Almost surely, 2^222612216222 is an apocalyptic number.

222612216222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222612216222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258087947040).

222612216222 is an abundant number, since it is smaller than the sum of its proper divisors (293563677858).

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

222612216222 is a wasteful number, since it uses less digits than its factorization.

222612216222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 960 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

It can be divided in two parts, 222612 and 216222, that added together give a palindrome (438834).

The spelling of 222612216222 in words is "two hundred twenty-two billion, six hundred twelve million, two hundred sixteen thousand, two hundred twenty-two".