222122202112 has 88 divisors (see below), whose sum is σ = 448744895720. Its totient is φ = 109884211200.

The previous prime is 222122202097. The next prime is 222122202121. The reversal of 222122202112 is 211202221222.

It can be written as a sum of positive squares in 4 ways, for example, as 183223296 + 221938978816 = 13536^2 + 471104^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222122202112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134049988 + ... + 134051644.

It is an arithmetic number, because the mean of its divisors is an integer number (5099373815).

Almost surely, 2^222122202112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222122202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224372447860).

222122202112 is an abundant number, since it is smaller than the sum of its proper divisors (226622693608).

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

222122202112 is a wasteful number, since it uses less digits than its factorization.

222122202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987 (or 2969 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222122202112 its reverse (211202221222), we get a palindrome (433324423334).

The spelling of 222122202112 in words is "two hundred twenty-two billion, one hundred twenty-two million, two hundred two thousand, one hundred twelve".