3121203212212 has 24 divisors (see below), whose sum is σ = 5468341608576. Its totient is φ = 1558820912448.

The previous prime is 3121203212207. The next prime is 3121203212213. The reversal of 3121203212212 is 2122123021213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121203212213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12324453 + ... + 12575155.

It is an arithmetic number, because the mean of its divisors is an integer number (227847567024).

Almost surely, 2^{3121203212212} is an apocalyptic number.

It is an amenable number.

3121203212212 is a deficient number, since it is larger than the sum of its proper divisors (2347138396364).

3121203212212 is a wasteful number, since it uses less digits than its factorization.

3121203212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254247 (or 254245 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 3121203212212 its reverse (2122123021213), we get a palindrome (5243326233425).

The spelling of 3121203212212 in words is "three trillion, one hundred twenty-one billion, two hundred three million, two hundred twelve thousand, two hundred twelve".