2121013133012 has 24 divisors (see below), whose sum is σ = 3721120603200. Its totient is φ = 1057838651456.

The previous prime is 2121013133009. The next prime is 2121013133077. The reversal of 2121013133012 is 2103313101212.

It is a happy number.

It is a congruent number.

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, 2648783 + ... + 3355305.

It is an arithmetic number, because the mean of its divisors is an integer number (155046691800).

Almost surely, 2^{2121013133012} is an apocalyptic number.

It is an amenable number.

2121013133012 is a deficient number, since it is larger than the sum of its proper divisors (1600107470188).

2121013133012 is a wasteful number, since it uses less digits than its factorization.

2121013133012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708415 (or 708413 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2121013133012 its reverse (2103313101212), we get a palindrome (4224326234224).

The spelling of 2121013133012 in words is "two trillion, one hundred twenty-one billion, thirteen million, one hundred thirty-three thousand, twelve".