2212232240 has 40 divisors (see below), whose sum is σ = 5145771840. Its totient is φ = 884491776.

The previous prime is 2212232227. The next prime is 2212232279. The reversal of 2212232240 is 422322122.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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 7 ways as a sum of consecutive naturals, for example, 223721 + ... + 233399.

It is an arithmetic number, because the mean of its divisors is an integer number (128644296).

Almost surely, 2^2212232240 is an apocalyptic number.

2212232240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212232240 is an abundant number, since it is smaller than the sum of its proper divisors (2933539600).

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

2212232240 is a wasteful number, since it uses less digits than its factorization.

2212232240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12549 (or 12543 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2212232240 is about 47034.3729627599. The cubic root of 2212232240 is about 1302.9974698715.

Adding to 2212232240 its reverse (422322122), we get a palindrome (2634554362).

The spelling of 2212232240 in words is "two billion, two hundred twelve million, two hundred thirty-two thousand, two hundred forty".