22133213523 has 32 divisors (see below), whose sum is σ = 33347973120. Its totient is φ = 14506387200.

The previous prime is 22133213503. The next prime is 22133213533. The reversal of 22133213523 is 32531233122.

It is a happy number.

22133213523 is a `hidden beast` number, since 2 + 2 + 133 + 2 + 1 + 3 + 523 = 666.

It is not a de Polignac number, because 22133213523 - 2¹³ = 22133205331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22133213503) 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 31 ways as a sum of consecutive naturals, for example, 367486 + ... + 423452.

It is an arithmetic number, because the mean of its divisors is an integer number (1042124160).

Almost surely, 2^22133213523 is an apocalyptic number.

22133213523 is a deficient number, since it is larger than the sum of its proper divisors (11214759597).

22133213523 is a wasteful number, since it uses less digits than its factorization.

22133213523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56224 (or 56218 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

Adding to 22133213523 its reverse (32531233122), we get a palindrome (54664446645).

The spelling of 22133213523 in words is "twenty-two billion, one hundred thirty-three million, two hundred thirteen thousand, five hundred twenty-three".