2212231272 has 32 divisors (see below), whose sum is σ = 5562557280. Its totient is φ = 733146560.

The previous prime is 2212231253. The next prime is 2212231279. The reversal of 2212231272 is 2721322122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2212231279) 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 7 ways as a sum of consecutive naturals, for example, 262254 + ... + 270557.

It is an arithmetic number, because the mean of its divisors is an integer number (173829915).

Almost surely, 2^2212231272 is an apocalyptic number.

It is an amenable number.

2212231272 is an abundant number, since it is smaller than the sum of its proper divisors (3350326008).

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

2212231272 is a wasteful number, since it uses less digits than its factorization.

2212231272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532993 (or 532989 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 2212231272 is about 47034.3626724122. The cubic root of 2212231272 is about 1302.9972798218.

Adding to 2212231272 its reverse (2721322122), we get a palindrome (4933553394).

The spelling of 2212231272 in words is "two billion, two hundred twelve million, two hundred thirty-one thousand, two hundred seventy-two".