2121330211333 has 2 divisors, whose sum is σ = 2121330211334. Its totient is φ = 2121330211332.

The previous prime is 2121330211321. The next prime is 2121330211397. The reversal of 2121330211333 is 3331120331212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1895669109889 + 225661101444 = 1376833^2 + 475038^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121330211333 - 2⁹ = 2121330210821 is a prime.

It is a super-2 number, since 2×2121330211333² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121330211298 and 2121330211307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121330281333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060665105666 + 1060665105667.

It is an arithmetic number, because the mean of its divisors is an integer number (1060665105667).

Almost surely, 2^{2121330211333} is an apocalyptic number.

It is an amenable number.

2121330211333 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121330211333 is an equidigital number, since it uses as much as digits as its factorization.

2121330211333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 2121330211333 its reverse (3331120331212), we get a palindrome (5452450542545).

The spelling of 2121330211333 in words is "two trillion, one hundred twenty-one billion, three hundred thirty million, two hundred eleven thousand, three hundred thirty-three".