2121210112012 has 12 divisors (see below), whose sum is σ = 3713925853456. Its totient is φ = 1060088439600.

The previous prime is 2121210112001. The next prime is 2121210112037. The reversal of 2121210112012 is 2102110121212.

It is a super-3 number, since 3×2121210112012³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129144864 + ... + 129161287.

Almost surely, 2^{2121210112012} is an apocalyptic number.

It is an amenable number.

2121210112012 is a deficient number, since it is larger than the sum of its proper divisors (1592715741444).

2121210112012 is a wasteful number, since it uses less digits than its factorization.

2121210112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258308208 (or 258308206 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121210112012 its reverse (2102110121212), we get a palindrome (4223320233224).

The spelling of 2121210112012 in words is "two trillion, one hundred twenty-one billion, two hundred ten million, one hundred twelve thousand, twelve".