12462121 has 6 divisors (see below), whose sum is σ = 14496810. Its totient is φ = 10681776.

The previous prime is 12462103. The next prime is 12462127. The reversal of 12462121 is 12126421.

It can be written as a sum of positive squares in only one way, i.e., 6528025 + 5934096 = 2555^2 + 2436^2 .

It is not a de Polignac number, because 12462121 - 2⁵ = 12462089 is a prime.

It is a Duffinian number.

12462121 is a modest number, since divided by 2121 gives 1246 as remainder.

It is not an unprimeable number, because it can be changed into a prime (12462127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127116 + ... + 127213.

It is an arithmetic number, because the mean of its divisors is an integer number (2416135).

Almost surely, 2^12462121 is an apocalyptic number.

It is an amenable number.

12462121 is a deficient number, since it is larger than the sum of its proper divisors (2034689).

12462121 is an equidigital number, since it uses as much as digits as its factorization.

12462121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254343 (or 254336 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 12462121 is about 3530.1729419392. The cubic root of 12462121 is about 231.8447794957.

Adding to 12462121 its reverse (12126421), we get a palindrome (24588542).

The spelling of 12462121 in words is "twelve million, four hundred sixty-two thousand, one hundred twenty-one".