12062130721 has 16 divisors (see below), whose sum is σ = 12949719040. Its totient is φ = 11213691840.

The previous prime is 12062130599. The next prime is 12062130733. The reversal of 12062130721 is 12703126021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12062130721 - 2⁷ = 12062130593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12062130781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24055 + ... + 157171.

It is an arithmetic number, because the mean of its divisors is an integer number (809357440).

Almost surely, 2^12062130721 is an apocalyptic number.

It is an amenable number.

12062130721 is a deficient number, since it is larger than the sum of its proper divisors (887588319).

12062130721 is a wasteful number, since it uses less digits than its factorization.

12062130721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133264.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 12062130721 its reverse (12703126021), we get a palindrome (24765256742).

The spelling of 12062130721 in words is "twelve billion, sixty-two million, one hundred thirty thousand, seven hundred twenty-one".