222297600 has 240 divisors, whose sum is σ = 840267648. Its totient is φ = 50749440.

The previous prime is 222297589. The next prime is 222297601. The reversal of 222297600 is 6792222.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222297601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268387 + ... + 269213.

Almost surely, 2^222297600 is an apocalyptic number.

222297600 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 222297600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420133824).

222297600 is an abundant number, since it is smaller than the sum of its proper divisors (617970048).

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

222297600 is an equidigital number, since it uses as much as digits as its factorization.

222297600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 222297600 is about 14909.6478831661. The cubic root of 222297600 is about 605.7753417916.

The spelling of 222297600 in words is "two hundred twenty-two million, two hundred ninety-seven thousand, six hundred".