2231303231212 has 18 divisors (see below), whose sum is σ = 4292031629564. Its totient is φ = 1014228741240.

The previous prime is 2231303231111. The next prime is 2231303231293. The reversal of 2231303231212 is 2121323031322.

It is a super-3 number, since 3×2231303231212³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 5 ways as a sum of consecutive naturals, for example, 2305064838 + ... + 2305065805.

Almost surely, 2^{2231303231212} is an apocalyptic number.

2231303231212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2231303231212 is a deficient number, since it is larger than the sum of its proper divisors (2060728398352).

2231303231212 is a wasteful number, since it uses less digits than its factorization.

2231303231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4610130669 (or 4610130656 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2231303231212 its reverse (2121323031322), we get a palindrome (4352626262534).

The spelling of 2231303231212 in words is "two trillion, two hundred thirty-one billion, three hundred three million, two hundred thirty-one thousand, two hundred twelve".