21333213221339 has 2 divisors, whose sum is σ = 21333213221340. Its totient is φ = 21333213221338.

The previous prime is 21333213221297. The next prime is 21333213221357. The reversal of 21333213221339 is 93312231233312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21333213221339 is a prime.

It is a super-2 number, since 2×21333213221339² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21333213221389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666606610669 + 10666606610670.

It is an arithmetic number, because the mean of its divisors is an integer number (10666606610670).

Almost surely, 2^{21333213221339} is an apocalyptic number.

21333213221339 is a deficient number, since it is larger than the sum of its proper divisors (1).

21333213221339 is an equidigital number, since it uses as much as digits as its factorization.

21333213221339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 38.

The spelling of 21333213221339 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred thirty-nine".