222202120 has 64 divisors (see below), whose sum is σ = 573091200. Its totient is φ = 75955200.

The previous prime is 222202111. The next prime is 222202133. The reversal of 222202120 is 21202222.

It is a self number, because there is not a number n which added to its sum of digits gives 222202120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111291 + ... + 113269.

It is an arithmetic number, because the mean of its divisors is an integer number (8954550).

Almost surely, 2^222202120 is an apocalyptic number.

222202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222202120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286545600).

222202120 is an abundant number, since it is smaller than the sum of its proper divisors (350889080).

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

222202120 is a wasteful number, since it uses less digits than its factorization.

222202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 222202120 is about 14906.4455857190. The cubic root of 222202120 is about 605.6885996456.

Adding to 222202120 its reverse (21202222), we get a palindrome (243404342).

The spelling of 222202120 in words is "two hundred twenty-two million, two hundred two thousand, one hundred twenty".