14624021221 has 8 divisors (see below), whose sum is σ = 14756123520. Its totient is φ = 14491966272.

The previous prime is 14624021117. The next prime is 14624021249. The reversal of 14624021221 is 12212042641.

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

It is a cyclic number.

It is not a de Polignac number, because 14624021221 - 2¹¹ = 14624019173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14624021021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977826 + ... + 992668.

It is an arithmetic number, because the mean of its divisors is an integer number (1844515440).

Almost surely, 2^14624021221 is an apocalyptic number.

It is an amenable number.

14624021221 is a deficient number, since it is larger than the sum of its proper divisors (132102299).

14624021221 is a wasteful number, since it uses less digits than its factorization.

14624021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23675.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 14624021221 its reverse (12212042641), we get a palindrome (26836063862).

The spelling of 14624021221 in words is "fourteen billion, six hundred twenty-four million, twenty-one thousand, two hundred twenty-one".