2121321212333 has 2 divisors, whose sum is σ = 2121321212334. Its totient is φ = 2121321212332.

The previous prime is 2121321212299. The next prime is 2121321212341. The reversal of 2121321212333 is 3332121231212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1748564562889 + 372756649444 = 1322333^2 + 610538^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121321212333 - 2²⁸ = 2121052776877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121321212363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060660606166 + 1060660606167.

It is an arithmetic number, because the mean of its divisors is an integer number (1060660606167).

Almost surely, 2^{2121321212333} is an apocalyptic number.

It is an amenable number.

2121321212333 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121321212333 is an equidigital number, since it uses as much as digits as its factorization.

2121321212333 is an evil number, because the sum of its binary digits is even.

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

Adding to 2121321212333 its reverse (3332121231212), we get a palindrome (5453442443545).

The spelling of 2121321212333 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred twelve thousand, three hundred thirty-three".