222201324 has 18 divisors (see below), whose sum is σ = 561675660. Its totient is φ = 74067096.

The previous prime is 222201319. The next prime is 222201337. The reversal of 222201324 is 423102222.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222201297 and 222201306.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3086094 + ... + 3086165.

Almost surely, 2^222201324 is an apocalyptic number.

It is an amenable number.

222201324 is an abundant number, since it is smaller than the sum of its proper divisors (339474336).

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

222201324 is a wasteful number, since it uses less digits than its factorization.

222201324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172269 (or 6172264 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222201324 is about 14906.4188858357. The cubic root of 222201324 is about 605.6878763872.

Adding to 222201324 its reverse (423102222), we get a palindrome (645303546).

The spelling of 222201324 in words is "two hundred twenty-two million, two hundred one thousand, three hundred twenty-four".