2212204140 has 72 divisors (see below), whose sum is σ = 6721565760. Its totient is φ = 588935424.

The previous prime is 2212204139. The next prime is 2212204151. The reversal of 2212204140 is 414022122.

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

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 101101 + ... + 121019.

It is an arithmetic number, because the mean of its divisors is an integer number (93355080).

Almost surely, 2^2212204140 is an apocalyptic number.

2212204140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212204140 is an abundant number, since it is smaller than the sum of its proper divisors (4509361620).

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

2212204140 is a wasteful number, since it uses less digits than its factorization.

2212204140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20551 (or 20546 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2212204140 is about 47034.0742441052. The cubic root of 2212204140 is about 1302.9919529124.

Adding to 2212204140 its reverse (414022122), we get a palindrome (2626226262).

The spelling of 2212204140 in words is "two billion, two hundred twelve million, two hundred four thousand, one hundred forty".