21332221123133 has 4 divisors (see below), whose sum is σ = 21332284692000. Its totient is φ = 21332157554268.

The previous prime is 21332221123111. The next prime is 21332221123151. The reversal of 21332221123133 is 33132112223312.

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 not a de Polignac number, because 21332221123133 - 2⁶ = 21332221123069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21332221123096 and 21332221123105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332220123133) 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, 31278383 + ... + 31953116.

It is an arithmetic number, because the mean of its divisors is an integer number (5333071173000).

Almost surely, 2^{21332221123133} is an apocalyptic number.

It is an amenable number.

21332221123133 is a deficient number, since it is larger than the sum of its proper divisors (63568867).

21332221123133 is an equidigital number, since it uses as much as digits as its factorization.

21332221123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63568866.

The product of its digits is 7776, while the sum is 29.

Adding to 21332221123133 its reverse (33132112223312), we get a palindrome (54464333346445).

The spelling of 21332221123133 in words is "twenty-one trillion, three hundred thirty-two billion, two hundred twenty-one million, one hundred twenty-three thousand, one hundred thirty-three".