2123211211333 has 2 divisors, whose sum is σ = 2123211211334. Its totient is φ = 2123211211332.

The previous prime is 2123211211283. The next prime is 2123211211349. The reversal of 2123211211333 is 3331121123212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2082875309089 + 40335902244 = 1443217^2 + 200838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123211211333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123211211298 and 2123211211307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123211211393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061605605666 + 1061605605667.

It is an arithmetic number, because the mean of its divisors is an integer number (1061605605667).

Almost surely, 2^{2123211211333} is an apocalyptic number.

It is an amenable number.

2123211211333 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123211211333 is an equidigital number, since it uses as much as digits as its factorization.

2123211211333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

Adding to 2123211211333 its reverse (3331121123212), we get a palindrome (5454332334545).

The spelling of 2123211211333 in words is "two trillion, one hundred twenty-three billion, two hundred eleven million, two hundred eleven thousand, three hundred thirty-three".