21114512 has 20 divisors (see below), whose sum is σ = 41235456. Its totient is φ = 10473120.

The previous prime is 21114463. The next prime is 21114521. The reversal of 21114512 is 21541112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3164 + ... + 7227.

Almost surely, 2^21114512 is an apocalyptic number.

It is an amenable number.

21114512 is a deficient number, since it is larger than the sum of its proper divisors (20120944).

21114512 is a wasteful number, since it uses less digits than its factorization.

21114512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10526 (or 10520 counting only the distinct ones).

The product of its digits is 80, while the sum is 17.

The square root of 21114512 is about 4595.0529920775. The cubic root of 21114512 is about 276.3929849530.

Adding to 21114512 its reverse (21541112), we get a palindrome (42655624).

The spelling of 21114512 in words is "twenty-one million, one hundred fourteen thousand, five hundred twelve".