222135000 has 160 divisors (see below), whose sum is σ = 708523200. Its totient is φ = 58000000.

The previous prime is 222134981. The next prime is 222135029. The reversal of 222135000 is 531222.

222135000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 884875 + ... + 885125.

It is an arithmetic number, because the mean of its divisors is an integer number (4428270).

Almost surely, 2^222135000 is an apocalyptic number.

222135000 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 222135000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354261600).

222135000 is an abundant number, since it is smaller than the sum of its proper divisors (486388200).

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

222135000 is a wasteful number, since it uses less digits than its factorization.

222135000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 222135000 is about 14904.1940406048. The cubic root of 222135000 is about 605.6276072589.

Adding to 222135000 its reverse (531222), we get a palindrome (222666222).

The spelling of 222135000 in words is "two hundred twenty-two million, one hundred thirty-five thousand".