21412200224 has 24 divisors (see below), whose sum is σ = 42265359360. Its totient is φ = 10678140736.

The previous prime is 21412200209. The next prime is 21412200253. The reversal of 21412200224 is 42200221412.

It is a junction number, because it is equal to n+sod(n) for n = 21412200196 and 21412200205.

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, 861284 + ... + 885795.

It is an arithmetic number, because the mean of its divisors is an integer number (1761056640).

Almost surely, 2^21412200224 is an apocalyptic number.

It is an amenable number.

21412200224 is a deficient number, since it is larger than the sum of its proper divisors (20853159136).

21412200224 is a wasteful number, since it uses less digits than its factorization.

21412200224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747472 (or 1747464 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21412200224 its reverse (42200221412), we get a palindrome (63612421636).

The spelling of 21412200224 in words is "twenty-one billion, four hundred twelve million, two hundred thousand, two hundred twenty-four".