222232500 has 360 divisors, whose sum is σ = 859674816. Its totient is φ = 47232000.

The previous prime is 222232469. The next prime is 222232519. The reversal of 222232500 is 5232222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2677459 + ... + 2677541.

Almost surely, 2^222232500 is an apocalyptic number.

222232500 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 222232500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429837408).

222232500 is an abundant number, since it is smaller than the sum of its proper divisors (637442316).

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

222232500 is a wasteful number, since it uses less digits than its factorization.

222232500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 222232500 is about 14907.4645731593. The cubic root of 222232500 is about 605.7162021142.

Adding to 222232500 its reverse (5232222), we get a palindrome (227464722).

The spelling of 222232500 in words is "two hundred twenty-two million, two hundred thirty-two thousand, five hundred".