21233111221133 has 8 divisors (see below), whose sum is σ = 24608193287040. Its totient is φ = 17943474270960.

The previous prime is 21233111221109. The next prime is 21233111221151. The reversal of 21233111221133 is 33112211133212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21233111221133 - 2¹² = 21233111217037 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 (21233111221103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21361278398 + ... + 21361279391.

It is an arithmetic number, because the mean of its divisors is an integer number (3076024160880).

Almost surely, 2^{21233111221133} is an apocalyptic number.

It is an amenable number.

21233111221133 is a deficient number, since it is larger than the sum of its proper divisors (3375082065907).

21233111221133 is an equidigital number, since it uses as much as digits as its factorization.

21233111221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42722557867.

The product of its digits is 1296, while the sum is 26.

Adding to 21233111221133 its reverse (33112211133212), we get a palindrome (54345322354345).

The spelling of 21233111221133 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred eleven million, two hundred twenty-one thousand, one hundred thirty-three".