21223333113 has 16 divisors (see below), whose sum is σ = 29224592640. Its totient is φ = 13692246656.

The previous prime is 21223333037. The next prime is 21223333129. The reversal of 21223333113 is 31133332212.

It is a cyclic number.

It is not a de Polignac number, because 21223333113 - 2¹⁰ = 21223332089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21223333213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833070 + ... + 858167.

It is an arithmetic number, because the mean of its divisors is an integer number (1826537040).

Almost surely, 2^21223333113 is an apocalyptic number.

It is an amenable number.

21223333113 is a deficient number, since it is larger than the sum of its proper divisors (8001259527).

21223333113 is a wasteful number, since it uses less digits than its factorization.

21223333113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691376.

The product of its digits is 1944, while the sum is 24.

Adding to 21223333113 its reverse (31133332212), we get a palindrome (52356665325).

Subtracting 21223333113 from its reverse (31133332212), we obtain a palindrome (9909999099).

The spelling of 21223333113 in words is "twenty-one billion, two hundred twenty-three million, three hundred thirty-three thousand, one hundred thirteen".