222144324 has 24 divisors (see below), whose sum is σ = 521642688. Its totient is φ = 73575840.

The previous prime is 222144313. The next prime is 222144341. The reversal of 222144324 is 423441222.

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

It is a junction number, because it is equal to n+sod(n) for n = 222144294 and 222144303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57072 + ... + 60839.

It is an arithmetic number, because the mean of its divisors is an integer number (21735112).

Almost surely, 2^222144324 is an apocalyptic number.

It is an amenable number.

222144324 is an abundant number, since it is smaller than the sum of its proper divisors (299498364).

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

222144324 is a wasteful number, since it uses less digits than its factorization.

222144324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118075 (or 118073 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 222144324 is about 14904.5068351824. The cubic root of 222144324 is about 605.6360807740.

Adding to 222144324 its reverse (423441222), we get a palindrome (645585546).

The spelling of 222144324 in words is "two hundred twenty-two million, one hundred forty-four thousand, three hundred twenty-four".