14011212421 has 4 divisors (see below), whose sum is σ = 14011452000. Its totient is φ = 14010972844.

The previous prime is 14011212419. The next prime is 14011212431. The reversal of 14011212421 is 12421211041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14011212421 - 2¹ = 14011212419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14011212431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32310 + ... + 170488.

It is an arithmetic number, because the mean of its divisors is an integer number (3502863000).

Almost surely, 2^14011212421 is an apocalyptic number.

It is an amenable number.

14011212421 is a deficient number, since it is larger than the sum of its proper divisors (239579).

14011212421 is a wasteful number, since it uses less digits than its factorization.

14011212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239578.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 14011212421 its reverse (12421211041), we get a palindrome (26432423462).

The spelling of 14011212421 in words is "fourteen billion, eleven million, two hundred twelve thousand, four hundred twenty-one".