21244004014 has 8 divisors (see below), whose sum is σ = 31934832480. Its totient is φ = 10599059856.

The previous prime is 21244003903. The next prime is 21244004057. The reversal of 21244004014 is 41040044212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21244004014² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 11469919 + ... + 11471770.

It is an arithmetic number, because the mean of its divisors is an integer number (3991854060).

Almost surely, 2^21244004014 is an apocalyptic number.

21244004014 is a deficient number, since it is larger than the sum of its proper divisors (10690828466).

21244004014 is a wasteful number, since it uses less digits than its factorization.

21244004014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22942154.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 21244004014 its reverse (41040044212), we get a palindrome (62284048226).

The spelling of 21244004014 in words is "twenty-one billion, two hundred forty-four million, four thousand, fourteen".