21412022434 has 16 divisors (see below), whose sum is σ = 35059059936. Its totient is φ = 9726847200.

The previous prime is 21412022407. The next prime is 21412022447. The reversal of 21412022434 is 43422021412.

It is a junction number, because it is equal to n+sod(n) for n = 21412022399 and 21412022408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257232 + ... + 330139.

It is an arithmetic number, because the mean of its divisors is an integer number (2191191246).

Almost surely, 2^21412022434 is an apocalyptic number.

21412022434 is a deficient number, since it is larger than the sum of its proper divisors (13647037502).

21412022434 is a wasteful number, since it uses less digits than its factorization.

21412022434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589041.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21412022434 its reverse (43422021412), we get a palindrome (64834043846).

The spelling of 21412022434 in words is "twenty-one billion, four hundred twelve million, twenty-two thousand, four hundred thirty-four".