2121122310312 has 32 divisors (see below), whose sum is σ = 5533362550080. Its totient is φ = 676299866880.

The previous prime is 2121122310277. The next prime is 2121122310317. The reversal of 2121122310312 is 2130132211212.

It is not an unprimeable number, because it can be changed into a prime (2121122310317) 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, 1921305889 + ... + 1921306992.

It is an arithmetic number, because the mean of its divisors is an integer number (172917579690).

Almost surely, 2^{2121122310312} is an apocalyptic number.

It is an amenable number.

2121122310312 is an abundant number, since it is smaller than the sum of its proper divisors (3412240239768).

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

2121122310312 is a wasteful number, since it uses less digits than its factorization.

2121122310312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842612913 (or 3842612909 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2121122310312 its reverse (2130132211212), we get a palindrome (4251254521524).

The spelling of 2121122310312 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-two million, three hundred ten thousand, three hundred twelve".