3121212330112 has 64 divisors (see below), whose sum is σ = 6245329766400. Its totient is φ = 1553765068800.

The previous prime is 3121212330043. The next prime is 3121212330121. The reversal of 3121212330112 is 2110332121213.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50995464 + ... + 51056632.

It is an arithmetic number, because the mean of its divisors is an integer number (97583277600).

Almost surely, 2^{3121212330112} is an apocalyptic number.

3121212330112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3121212330112 is an abundant number, since it is smaller than the sum of its proper divisors (3124117436288).

3121212330112 is a wasteful number, since it uses less digits than its factorization.

3121212330112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62925 (or 62913 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3121212330112 its reverse (2110332121213), we get a palindrome (5231544451325).

The spelling of 3121212330112 in words is "three trillion, one hundred twenty-one billion, two hundred twelve million, three hundred thirty thousand, one hundred twelve".