12240013040421 has 8 divisors (see below), whose sum is σ = 16320530448384. Its totient is φ = 8159752163040.

The previous prime is 12240013040389. The next prime is 12240013040429. The reversal of 12240013040421 is 12404031004221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12240013040421 - 2⁵ = 12240013040389 is a prime.

It is a super-2 number, since 2×12240013040421² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12240013040391 and 12240013040400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240013040429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64021285 + ... + 64212186.

It is an arithmetic number, because the mean of its divisors is an integer number (2040066306048).

Almost surely, 2^{12240013040421} is an apocalyptic number.

It is an amenable number.

12240013040421 is a deficient number, since it is larger than the sum of its proper divisors (4080517407963).

12240013040421 is a wasteful number, since it uses less digits than its factorization.

12240013040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128265291.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12240013040421 its reverse (12404031004221), we get a palindrome (24644044044642).

The spelling of 12240013040421 in words is "twelve trillion, two hundred forty billion, thirteen million, forty thousand, four hundred twenty-one".