222255000 has 240 divisors, whose sum is σ = 822393000. Its totient is φ = 53760000.

The previous prime is 222254971. The next prime is 222255001. The reversal of 222255000 is 552222.

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

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222255001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 494776 + ... + 495224.

Almost surely, 2^222255000 is an apocalyptic number.

222255000 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 222255000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411196500).

222255000 is an abundant number, since it is smaller than the sum of its proper divisors (600138000).

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

222255000 is a wasteful number, since it uses less digits than its factorization.

222255000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 222255000 is about 14908.2192095501. The cubic root of 222255000 is about 605.7366434008.

It can be divided in two parts, 22225 and 5000, that added together give a square (27225 = 165²).

The spelling of 222255000 in words is "two hundred twenty-two million, two hundred fifty-five thousand".