222044140 has 48 divisors (see below), whose sum is σ = 502135200. Its totient is φ = 82168832.

The previous prime is 222044111. The next prime is 222044143. The reversal of 222044140 is 41440222.

It is not an unprimeable number, because it can be changed into a prime (222044143) 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 15 ways as a sum of consecutive naturals, for example, 14526 + ... + 25594.

It is an arithmetic number, because the mean of its divisors is an integer number (10461150).

Almost surely, 2^222044140 is an apocalyptic number.

222044140 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 222044140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251067600).

222044140 is an abundant number, since it is smaller than the sum of its proper divisors (280091060).

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

222044140 is a wasteful number, since it uses less digits than its factorization.

222044140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11154 (or 11152 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 222044140 is about 14901.1455935441. The cubic root of 222044140 is about 605.5450226014.

Adding to 222044140 its reverse (41440222), we get a palindrome (263484362).

It can be divided in two parts, 2220 and 44140, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 222044140 in words is "two hundred twenty-two million, forty-four thousand, one hundred forty".