21042210514 has 32 divisors (see below), whose sum is σ = 36692248320. Its totient is φ = 8969201472.

The previous prime is 21042210503. The next prime is 21042210517. The reversal of 21042210514 is 41501224012.

21042210514 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (21042210517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589342 + ... + 624025.

It is an arithmetic number, because the mean of its divisors is an integer number (1146632760).

Almost surely, 2^21042210514 is an apocalyptic number.

21042210514 is a deficient number, since it is larger than the sum of its proper divisors (15650037806).

21042210514 is a wasteful number, since it uses less digits than its factorization.

21042210514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213434.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 21042210514 its reverse (41501224012), we get a palindrome (62543434526).

The spelling of 21042210514 in words is "twenty-one billion, forty-two million, two hundred ten thousand, five hundred fourteen".