222444516 has 72 divisors (see below), whose sum is σ = 618571296. Its totient is φ = 61998720.

The previous prime is 222444503. The next prime is 222444539. The reversal of 222444516 is 615444222.

222444516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19495 + ... + 28721.

It is an arithmetic number, because the mean of its divisors is an integer number (8591268).

Almost surely, 2^222444516 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 222444516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309285648).

222444516 is an abundant number, since it is smaller than the sum of its proper divisors (396126780).

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

222444516 is a wasteful number, since it uses less digits than its factorization.

222444516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9289 (or 9280 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 222444516 is about 14914.5739463117. The cubic root of 222444516 is about 605.9087642713.

Adding to 222444516 its reverse (615444222), we get a palindrome (837888738).

The spelling of 222444516 in words is "two hundred twenty-two million, four hundred forty-four thousand, five hundred sixteen".