22121113333 has 4 divisors (see below), whose sum is σ = 24132123648. Its totient is φ = 20110103020.

The previous prime is 22121113321. The next prime is 22121113361. The reversal of 22121113333 is 33331112122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121113333 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 (22121113363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005505141 + ... + 1005505162.

It is an arithmetic number, because the mean of its divisors is an integer number (6033030912).

Almost surely, 2^22121113333 is an apocalyptic number.

It is an amenable number.

22121113333 is a deficient number, since it is larger than the sum of its proper divisors (2011010315).

22121113333 is a wasteful number, since it uses less digits than its factorization.

22121113333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011010314.

The product of its digits is 648, while the sum is 22.

Adding to 22121113333 its reverse (33331112122), we get a palindrome (55452225455).

The spelling of 22121113333 in words is "twenty-two billion, one hundred twenty-one million, one hundred thirteen thousand, three hundred thirty-three".