222424900 has 36 divisors (see below), whose sum is σ = 486375120. Its totient is φ = 88285600.

The previous prime is 222424841. The next prime is 222424919. The reversal of 222424900 is 9424222.

It is a happy number.

222424900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222424900² = 98945672280020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4611 + ... + 21589.

It is an arithmetic number, because the mean of its divisors is an integer number (13510420).

Almost surely, 2^222424900 is an apocalyptic number.

222424900 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 222424900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243187560).

222424900 is an abundant number, since it is smaller than the sum of its proper divisors (263950220).

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

222424900 is a wasteful number, since it uses less digits than its factorization.

222424900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17124 (or 17117 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 222424900 is about 14913.9163200013. The cubic root of 222424900 is about 605.8909533044.

The spelling of 222424900 in words is "two hundred twenty-two million, four hundred twenty-four thousand, nine hundred".