222226144 has 48 divisors (see below), whose sum is σ = 513541728. Its totient is φ = 92662272.

The previous prime is 222226141. The next prime is 222226163. The reversal of 222226144 is 441622222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222226141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5119 + ... + 21694.

It is an arithmetic number, because the mean of its divisors is an integer number (10698786).

Almost surely, 2^222226144 is an apocalyptic number.

It is an amenable number.

222226144 is an abundant number, since it is smaller than the sum of its proper divisors (291315584).

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

222226144 is a wasteful number, since it uses less digits than its factorization.

222226144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26867 (or 26859 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 222226144 is about 14907.2513898438. The cubic root of 222226144 is about 605.7104274280.

Adding to 222226144 its reverse (441622222), we get a palindrome (663848366).

The spelling of 222226144 in words is "two hundred twenty-two million, two hundred twenty-six thousand, one hundred forty-four".