12721014 has 24 divisors (see below), whose sum is σ = 27686880. Its totient is φ = 4221168.

The previous prime is 12720997. The next prime is 12721019. The reversal of 12721014 is 41012721.

12721014 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12721019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2824 + ... + 5780.

It is an arithmetic number, because the mean of its divisors is an integer number (1153620).

Almost surely, 2^12721014 is an apocalyptic number.

12721014 is an abundant number, since it is smaller than the sum of its proper divisors (14965866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12721014 is a wasteful number, since it uses less digits than its factorization.

12721014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3201 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 12721014 is about 3566.6530529335. The cubic root of 12721014 is about 233.4392666382.

Adding to 12721014 its reverse (41012721), we get a palindrome (53733735).

The spelling of 12721014 in words is "twelve million, seven hundred twenty-one thousand, fourteen".