222230500 has 24 divisors (see below), whose sum is σ = 485352504. Its totient is φ = 88892000.

The previous prime is 222230483. The next prime is 222230513. The reversal of 222230500 is 5032222.

It can be written as a sum of positive squares in 4 ways, for example, as 12096484 + 210134016 = 3478^2 + 14496^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221731 + ... + 222730.

It is an arithmetic number, because the mean of its divisors is an integer number (20223021).

Almost surely, 2^222230500 is an apocalyptic number.

222230500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222230500 is an abundant number, since it is smaller than the sum of its proper divisors (263122004).

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

222230500 is a wasteful number, since it uses less digits than its factorization.

222230500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444480 (or 444468 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 222230500 is about 14907.3974925203. The cubic root of 222230500 is about 605.7143850442.

Adding to 222230500 its reverse (5032222), we get a palindrome (227262722).

The spelling of 222230500 in words is "two hundred twenty-two million, two hundred thirty thousand, five hundred".