22121323133 has 16 divisors (see below), whose sum is σ = 27343120896. Its totient is φ = 17427450240.

The previous prime is 22121323129. The next prime is 22121323141. The reversal of 22121323133 is 33132312122.

It is a cyclic number.

It is not a de Polignac number, because 22121323133 - 2² = 22121323129 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22121323099 and 22121323108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121323123) 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, 500453 + ... + 542858.

It is an arithmetic number, because the mean of its divisors is an integer number (1708945056).

Almost surely, 2^22121323133 is an apocalyptic number.

It is an amenable number.

22121323133 is a deficient number, since it is larger than the sum of its proper divisors (5221797763).

22121323133 is a wasteful number, since it uses less digits than its factorization.

22121323133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043564.

The product of its digits is 1296, while the sum is 23.

Adding to 22121323133 its reverse (33132312122), we get a palindrome (55253635255).

The spelling of 22121323133 in words is "twenty-two billion, one hundred twenty-one million, three hundred twenty-three thousand, one hundred thirty-three".