21050012234 has 8 divisors (see below), whose sum is σ = 31578175200. Its totient is φ = 10523953836.

The previous prime is 21050012233. The next prime is 21050012257. The reversal of 21050012234 is 43221005012.

21050012234 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21050012231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500894 + ... + 541289.

It is an arithmetic number, because the mean of its divisors is an integer number (3947271900).

Almost surely, 2^21050012234 is an apocalyptic number.

21050012234 is a deficient number, since it is larger than the sum of its proper divisors (10528162966).

21050012234 is a wasteful number, since it uses less digits than its factorization.

21050012234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052284.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 21050012234 its reverse (43221005012), we get a palindrome (64271017246).

The spelling of 21050012234 in words is "twenty-one billion, fifty million, twelve thousand, two hundred thirty-four".