21223330113 has 8 divisors (see below), whose sum is σ = 28444394848. Its totient is φ = 14075576064.

The previous prime is 21223330091. The next prime is 21223330151. The reversal of 21223330113 is 31103332212.

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

It is not a de Polignac number, because 21223330113 - 2¹⁶ = 21223264577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21223330113.

It is not an unprimeable number, because it can be changed into a prime (21223330313) 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, 18326995 + ... + 18328152.

It is an arithmetic number, because the mean of its divisors is an integer number (3555549356).

Almost surely, 2^21223330113 is an apocalyptic number.

It is an amenable number.

21223330113 is a deficient number, since it is larger than the sum of its proper divisors (7221064735).

21223330113 is a wasteful number, since it uses less digits than its factorization.

21223330113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36655343.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21223330113 its reverse (31103332212), we get a palindrome (52326662325).

The spelling of 21223330113 in words is "twenty-one billion, two hundred twenty-three million, three hundred thirty thousand, one hundred thirteen".