21214030334 has 32 divisors (see below), whose sum is σ = 37266518016. Its totient is φ = 8866975680.

The previous prime is 21214030333. The next prime is 21214030337. The reversal of 21214030334 is 43303041212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214030333) 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, 2741579 + ... + 2749305.

It is an arithmetic number, because the mean of its divisors is an integer number (1164578688).

Almost surely, 2^21214030334 is an apocalyptic number.

21214030334 is a deficient number, since it is larger than the sum of its proper divisors (16052487682).

21214030334 is a wasteful number, since it uses less digits than its factorization.

21214030334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12560.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21214030334 its reverse (43303041212), we get a palindrome (64517071546).

The spelling of 21214030334 in words is "twenty-one billion, two hundred fourteen million, thirty thousand, three hundred thirty-four".