222198000 has 160 divisors (see below), whose sum is σ = 741648960. Its totient is φ = 57164800.

The previous prime is 222197957. The next prime is 222198017. The reversal of 222198000 is 891222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173362 + ... + 174638.

It is an arithmetic number, because the mean of its divisors is an integer number (4635306).

Almost surely, 2^222198000 is an apocalyptic number.

222198000 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 222198000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370824480).

222198000 is an abundant number, since it is smaller than the sum of its proper divisors (519450960).

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

222198000 is a wasteful number, since it uses less digits than its factorization.

222198000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 222198000 is about 14906.3073898266. The cubic root of 222198000 is about 605.6848561283.

The spelling of 222198000 in words is "two hundred twenty-two million, one hundred ninety-eight thousand".