21212010331233 has 8 divisors (see below), whose sum is σ = 28429222828128. Its totient is φ = 14068069027584.

The previous prime is 21212010331223. The next prime is 21212010331243. The reversal of 21212010331233 is 33213301021212.

It is an interprime number because it is at equal distance from previous prime (21212010331223) and next prime (21212010331243).

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

It is not a de Polignac number, because 21212010331233 - 2¹⁰ = 21212010330209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21212010331223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18317797635 + ... + 18317798792.

It is an arithmetic number, because the mean of its divisors is an integer number (3553652853516).

Almost surely, 2^{21212010331233} is an apocalyptic number.

It is an amenable number.

21212010331233 is a deficient number, since it is larger than the sum of its proper divisors (7217212496895).

21212010331233 is a wasteful number, since it uses less digits than its factorization.

21212010331233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36635596623.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21212010331233 its reverse (33213301021212), we get a palindrome (54425311352445).

The spelling of 21212010331233 in words is "twenty-one trillion, two hundred twelve billion, ten million, three hundred thirty-one thousand, two hundred thirty-three".