21224315113 has 8 divisors (see below), whose sum is σ = 21274832736. Its totient is φ = 21173858400.

The previous prime is 21224315093. The next prime is 21224315183. The reversal of 21224315113 is 31151342212.

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 21224315113 - 2¹⁷ = 21224184041 is a prime.

It is a super-3 number, since 3×21224315113³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21224315183) 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, 724570 + ... + 753292.

It is an arithmetic number, because the mean of its divisors is an integer number (2659354092).

Almost surely, 2^21224315113 is an apocalyptic number.

It is an amenable number.

21224315113 is a deficient number, since it is larger than the sum of its proper divisors (50517623).

21224315113 is an equidigital number, since it uses as much as digits as its factorization.

21224315113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30455.

The product of its digits is 1440, while the sum is 25.

Adding to 21224315113 its reverse (31151342212), we get a palindrome (52375657325).

The spelling of 21224315113 in words is "twenty-one billion, two hundred twenty-four million, three hundred fifteen thousand, one hundred thirteen".