3122131212 has 18 divisors (see below), whose sum is σ = 7892053988. Its totient is φ = 1040710392.

The previous prime is 3122131211. The next prime is 3122131247. The reversal of 3122131212 is 2121312213.

3122131212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3122131211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43362898 + ... + 43362969.

Almost surely, 2^3122131212 is an apocalyptic number.

It is an amenable number.

3122131212 is an abundant number, since it is smaller than the sum of its proper divisors (4769922776).

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

3122131212 is a wasteful number, since it uses less digits than its factorization.

3122131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86725877 (or 86725872 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3122131212 is about 55876.0343259970. The cubic root of 3122131212 is about 1461.5613514963.

Adding to 3122131212 its reverse (2121312213), we get a palindrome (5243443425).

The spelling of 3122131212 in words is "three billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred twelve".