14212143121 has 16 divisors (see below), whose sum is σ = 15619000320. Its totient is φ = 12824784720.

The previous prime is 14212143107. The next prime is 14212143163. The reversal of 14212143121 is 12134121241.

It is a de Polignac number, because none of the positive numbers 2^k-14212143121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14212143092 and 14212143101.

It is not an unprimeable number, because it can be changed into a prime (14212143521) 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, 810040 + ... + 827398.

It is an arithmetic number, because the mean of its divisors is an integer number (976187520).

Almost surely, 2^14212143121 is an apocalyptic number.

14212143121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14212143121 is a deficient number, since it is larger than the sum of its proper divisors (1406857199).

14212143121 is a wasteful number, since it uses less digits than its factorization.

14212143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17916.

The product of its digits is 384, while the sum is 22.

Adding to 14212143121 its reverse (12134121241), we get a palindrome (26346264362).

The spelling of 14212143121 in words is "fourteen billion, two hundred twelve million, one hundred forty-three thousand, one hundred twenty-one".