3122231212 has 12 divisors (see below), whose sum is σ = 5475314880. Its totient is φ = 1557855536.

The previous prime is 3122231191. The next prime is 3122231213. The reversal of 3122231212 is 2121322213.

It is a self number, because there is not a number n which added to its sum of digits gives 3122231212.

It is not an unprimeable number, because it can be changed into a prime (3122231213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812863 + ... + 816694.

It is an arithmetic number, because the mean of its divisors is an integer number (456276240).

Almost surely, 2^3122231212 is an apocalyptic number.

It is an amenable number.

3122231212 is a deficient number, since it is larger than the sum of its proper divisors (2353083668).

3122231212 is a wasteful number, since it uses less digits than its factorization.

3122231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630040 (or 1630038 counting only the distinct ones).

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

The square root of 3122231212 is about 55876.9291568533. The cubic root of 3122231212 is about 1461.5769556424.

Adding to 3122231212 its reverse (2121322213), we get a palindrome (5243553425).

The spelling of 3122231212 in words is "three billion, one hundred twenty-two million, two hundred thirty-one thousand, two hundred twelve".