21214204244014 has 4 divisors (see below), whose sum is σ = 31821306366024. Its totient is φ = 10607102122006.

The previous prime is 21214204243933. The next prime is 21214204244021. The reversal of 21214204244014 is 41044240241212.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5303551061002 + ... + 5303551061005.

It is an arithmetic number, because the mean of its divisors is an integer number (7955326591506).

Almost surely, 2^{21214204244014} is an apocalyptic number.

21214204244014 is a deficient number, since it is larger than the sum of its proper divisors (10607102122010).

21214204244014 is a wasteful number, since it uses less digits than its factorization.

21214204244014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10607102122009.

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 21214204244014 its reverse (41044240241212), we get a palindrome (62258444485226).

The spelling of 21214204244014 in words is "twenty-one trillion, two hundred fourteen billion, two hundred four million, two hundred forty-four thousand, fourteen".