2121130012 has 12 divisors (see below), whose sum is σ = 3873368016. Its totient is φ = 1014453440.

The previous prime is 2121130009. The next prime is 2121130031. The reversal of 2121130012 is 2100311212.

It is a junction number, because it is equal to n+sod(n) for n = 2121129974 and 2121130001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11527789 + ... + 11527972.

It is an arithmetic number, because the mean of its divisors is an integer number (322780668).

Almost surely, 2^2121130012 is an apocalyptic number.

It is an amenable number.

2121130012 is a deficient number, since it is larger than the sum of its proper divisors (1752238004).

2121130012 is a wasteful number, since it uses less digits than its factorization.

2121130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23055788 (or 23055786 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2121130012 is about 46055.7272442853. The cubic root of 2121130012 is about 1284.8598638986.

Adding to 2121130012 its reverse (2100311212), we get a palindrome (4221441224).

The spelling of 2121130012 in words is "two billion, one hundred twenty-one million, one hundred thirty thousand, twelve".