12004101421 has 16 divisors (see below), whose sum is σ = 13880740608. Its totient is φ = 10282003200.

The previous prime is 12004101397. The next prime is 12004101443. The reversal of 12004101421 is 12410140021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12004101421 - 2⁷ = 12004101293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12004101395 and 12004101404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004101121) 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, 366825 + ... + 398206.

It is an arithmetic number, because the mean of its divisors is an integer number (867546288).

Almost surely, 2^12004101421 is an apocalyptic number.

It is an amenable number.

12004101421 is a deficient number, since it is larger than the sum of its proper divisors (1876639187).

12004101421 is a wasteful number, since it uses less digits than its factorization.

12004101421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765132.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12004101421 its reverse (12410140021), we get a palindrome (24414241442).

The spelling of 12004101421 in words is "twelve billion, four million, one hundred one thousand, four hundred twenty-one".