21120211233233 has 8 divisors (see below), whose sum is σ = 25407772912320. Its totient is φ = 17150246715600.

The previous prime is 21120211233223. The next prime is 21120211233259. The reversal of 21120211233233 is 33233211202112.

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

It is a cyclic number.

It is not a de Polignac number, because 21120211233233 - 2⁸ = 21120211232977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21120211233223) 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, 79399290218 + ... + 79399290483.

It is an arithmetic number, because the mean of its divisors is an integer number (3175971614040).

Almost surely, 2^{21120211233233} is an apocalyptic number.

It is an amenable number.

21120211233233 is a deficient number, since it is larger than the sum of its proper divisors (4287561679087).

21120211233233 is a wasteful number, since it uses less digits than its factorization.

21120211233233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158798580727.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21120211233233 its reverse (33233211202112), we get a palindrome (54353422435345).

The spelling of 21120211233233 in words is "twenty-one trillion, one hundred twenty billion, two hundred eleven million, two hundred thirty-three thousand, two hundred thirty-three".