21224024201 has 8 divisors (see below), whose sum is σ = 21690286464. Its totient is φ = 20758374000.

The previous prime is 21224024191. The next prime is 21224024219. The reversal of 21224024201 is 10242042212.

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 21224024201 - 2²⁶ = 21156915337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21224024291) 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, 82550 + ... + 221951.

It is an arithmetic number, because the mean of its divisors is an integer number (2711285808).

Almost surely, 2^21224024201 is an apocalyptic number.

It is an amenable number.

21224024201 is a deficient number, since it is larger than the sum of its proper divisors (466262263).

21224024201 is a wasteful number, since it uses less digits than its factorization.

21224024201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306031.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21224024201 its reverse (10242042212), we get a palindrome (31466066413).

The spelling of 21224024201 in words is "twenty-one billion, two hundred twenty-four million, twenty-four thousand, two hundred one".