21141412 has 12 divisors (see below), whose sum is σ = 37086336. Its totient is φ = 10545320.

The previous prime is 21141403. The next prime is 21141431. The reversal of 21141412 is 21414112.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4408 + ... + 7855.

It is an arithmetic number, because the mean of its divisors is an integer number (3090528).

Almost surely, 2^21141412 is an apocalyptic number.

It is an amenable number.

21141412 is a deficient number, since it is larger than the sum of its proper divisors (15944924).

21141412 is a wasteful number, since it uses less digits than its factorization.

21141412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12698 (or 12696 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 21141412 is about 4597.9791213097. The cubic root of 21141412 is about 276.5103105176.

Adding to 21141412 its reverse (21414112), we get a palindrome (42555524).

The spelling of 21141412 in words is "twenty-one million, one hundred forty-one thousand, four hundred twelve".