2231231212 has 24 divisors (see below), whose sum is σ = 4463486720. Its totient is φ = 956022480.

The previous prime is 2231231179. The next prime is 2231231243. The reversal of 2231231212 is 2121321322.

It is a super-3 number, since 3×2231231212³ (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 2231231212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194887 + ... + 206017.

Almost surely, 2^2231231212 is an apocalyptic number.

It is an amenable number.

2231231212 is an abundant number, since it is smaller than the sum of its proper divisors (2232255508).

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

2231231212 is a wasteful number, since it uses less digits than its factorization.

2231231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18301 (or 18299 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2231231212 is about 47235.9101955281. The cubic root of 2231231212 is about 1306.7169528347.

Adding to 2231231212 its reverse (2121321322), we get a palindrome (4352552534).

The spelling of 2231231212 in words is "two billion, two hundred thirty-one million, two hundred thirty-one thousand, two hundred twelve".