21214035644304 has 20 divisors (see below), whose sum is σ = 54802925414576. Its totient is φ = 7071345214752.

The previous prime is 21214035644293. The next prime is 21214035644341. The reversal of 21214035644304 is 40344653041212.

It is a super-3 number, since 3×21214035644304³ (a number of 41 digits) contains 333 as substring.

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, 220979537914 + ... + 220979538009.

Almost surely, 2^{21214035644304} is an apocalyptic number.

21214035644304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21214035644304 is an abundant number, since it is smaller than the sum of its proper divisors (33588889770272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21214035644304 is a wasteful number, since it uses less digits than its factorization.

21214035644304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441959075934 (or 441959075928 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

Adding to 21214035644304 its reverse (40344653041212), we get a palindrome (61558688685516).

The spelling of 21214035644304 in words is "twenty-one trillion, two hundred fourteen billion, thirty-five million, six hundred forty-four thousand, three hundred four".