3121232212212 has 48 divisors (see below), whose sum is σ = 7899359594112. Its totient is φ = 955326929920.

The previous prime is 3121232212193. The next prime is 3121232212247. The reversal of 3121232212212 is 2122122321213.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186578928 + ... + 186595655.

It is an arithmetic number, because the mean of its divisors is an integer number (164569991544).

Almost surely, 2^{3121232212212} is an apocalyptic number.

It is an amenable number.

3121232212212 is an abundant number, since it is smaller than the sum of its proper divisors (4778127381900).

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

3121232212212 is a wasteful number, since it uses less digits than its factorization.

3121232212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373174648 (or 373174646 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 3121232212212 its reverse (2122122321213), we get a palindrome (5243354533425).

The spelling of 3121232212212 in words is "three trillion, one hundred twenty-one billion, two hundred thirty-two million, two hundred twelve thousand, two hundred twelve".