2012221232 has 20 divisors (see below), whose sum is σ = 4455632976. Its totient is φ = 862380480.

The previous prime is 2012221229. The next prime is 2012221259. The reversal of 2012221232 is 2321222102.

It is a self number, because there is not a number n which added to its sum of digits gives 2012221232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8983019 + ... + 8983242.

Almost surely, 2^2012221232 is an apocalyptic number.

It is an amenable number.

2012221232 is an abundant number, since it is smaller than the sum of its proper divisors (2443411744).

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

2012221232 is a wasteful number, since it uses less digits than its factorization.

2012221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17966276 (or 17966270 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2012221232 is about 44857.7889780582. The cubic root of 2012221232 is about 1262.4821382566.

Adding to 2012221232 its reverse (2321222102), we get a palindrome (4333443334).

The spelling of 2012221232 in words is "two billion, twelve million, two hundred twenty-one thousand, two hundred thirty-two".