2231303212 has 12 divisors (see below), whose sum is σ = 3922292416. Its totient is φ = 1110648240.

The previous prime is 2231303203. The next prime is 2231303237. The reversal of 2231303212 is 2123031322.

It is a super-3 number, since 3×2231303212³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231303212.

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, 1249839 + ... + 1251622.

Almost surely, 2^2231303212 is an apocalyptic number.

It is an amenable number.

2231303212 is a deficient number, since it is larger than the sum of its proper divisors (1690989204).

2231303212 is a wasteful number, since it uses less digits than its factorization.

2231303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501688 (or 2501686 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2231303212 is about 47236.6723214072. The cubic root of 2231303212 is about 1306.7310082448.

Adding to 2231303212 its reverse (2123031322), we get a palindrome (4354334534).

The spelling of 2231303212 in words is "two billion, two hundred thirty-one million, three hundred three thousand, two hundred twelve".