14121212420021 has 16 divisors (see below), whose sum is σ = 16765235297280. Its totient is φ = 11638840112640.

The previous prime is 14121212420011. The next prime is 14121212420041. The reversal of 14121212420021 is 12002421212141.

It is a cyclic number.

It is not a de Polignac number, because 14121212420021 - 2⁶ = 14121212419957 is a prime.

It is a super-2 number, since 2×14121212420021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14121212420011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207210236 + ... + 207278373.

It is an arithmetic number, because the mean of its divisors is an integer number (1047827206080).

Almost surely, 2^{14121212420021} is an apocalyptic number.

It is an amenable number.

14121212420021 is a deficient number, since it is larger than the sum of its proper divisors (2644022877259).

14121212420021 is a wasteful number, since it uses less digits than its factorization.

14121212420021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414488804.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 14121212420021 its reverse (12002421212141), we get a palindrome (26123633632162).

The spelling of 14121212420021 in words is "fourteen trillion, one hundred twenty-one billion, two hundred twelve million, four hundred twenty thousand, twenty-one".