3121220220112 has 40 divisors (see below), whose sum is σ = 6147588529152. Its totient is φ = 1534754812800.

The previous prime is 3121220220061. The next prime is 3121220220143. The reversal of 3121220220112 is 2110220221213.

It is a self number, because there is not a number n which added to its sum of digits gives 3121220220112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5293953 + ... + 5853919.

Almost surely, 2^{3121220220112} is an apocalyptic number.

It is an amenable number.

3121220220112 is a deficient number, since it is larger than the sum of its proper divisors (3026368309040).

3121220220112 is a wasteful number, since it uses less digits than its factorization.

3121220220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565747 (or 565741 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 3121220220112 its reverse (2110220221213), we get a palindrome (5231440441325).

The spelling of 3121220220112 in words is "three trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twenty thousand, one hundred twelve".