21214024355116 has 12 divisors (see below), whose sum is σ = 37127543156032. Its totient is φ = 10606154881968.

The previous prime is 21214024355053. The next prime is 21214024355143. The reversal of 21214024355116 is 61155342041212.

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, 214268220 + ... + 214367203.

Almost surely, 2^{21214024355116} is an apocalyptic number.

It is an amenable number.

21214024355116 is a deficient number, since it is larger than the sum of its proper divisors (15913518800916).

21214024355116 is a wasteful number, since it uses less digits than its factorization.

21214024355116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428647800 (or 428647798 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 21214024355116 its reverse (61155342041212), we get a palindrome (82369366396328).

The spelling of 21214024355116 in words is "twenty-one trillion, two hundred fourteen billion, twenty-four million, three hundred fifty-five thousand, one hundred sixteen".