12140343210021 has 32 divisors (see below), whose sum is σ = 17638548934272. Its totient is φ = 7382865657600.

The previous prime is 12140343209959. The next prime is 12140343210043. The reversal of 12140343210021 is 12001234304121.

It is not a de Polignac number, because 12140343210021 - 2⁷ = 12140343209893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12140343209973 and 12140343210000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140343220021) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 886450 + ... + 5006643.

It is an arithmetic number, because the mean of its divisors is an integer number (551204654196).

Almost surely, 2^{12140343210021} is an apocalyptic number.

It is an amenable number.

12140343210021 is a deficient number, since it is larger than the sum of its proper divisors (5498205724251).

12140343210021 is a wasteful number, since it uses less digits than its factorization.

12140343210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893733.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12140343210021 its reverse (12001234304121), we get a palindrome (24141577514142).

The spelling of 12140343210021 in words is "twelve trillion, one hundred forty billion, three hundred forty-three million, two hundred ten thousand, twenty-one".