222212444552 has 108 divisors (see below), whose sum is σ = 502573850415. Its totient is φ = 91837979520.

The previous prime is 222212444537. The next prime is 222212444603. The reversal of 222212444552 is 255444212222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

222212444552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 65559554116 + 156652890436 = 256046^2 + 395794^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333326.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 270660302 + ... + 270661122.

Almost surely, 2^222212444552 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 222212444552

222212444552 is an abundant number, since it is smaller than the sum of its proper divisors (280361405863).

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

222212444552 is an frugal number, since it uses more digits than its factorization.

222212444552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 859 counting only the distinct ones).

The product of its digits is 102400, while the sum is 35.

Adding to 222212444552 its reverse (255444212222), we get a palindrome (477656656774).

The spelling of 222212444552 in words is "two hundred twenty-two billion, two hundred twelve million, four hundred forty-four thousand, five hundred fifty-two".