221241221339 has 2 divisors, whose sum is σ = 221241221340. Its totient is φ = 221241221338.

The previous prime is 221241221317. The next prime is 221241221401. The reversal of 221241221339 is 933122142122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221241221339 - 2⁸ = 221241221083 is a prime.

It is not a weakly prime, because it can be changed into another prime (221241221639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110620610669 + 110620610670.

It is an arithmetic number, because the mean of its divisors is an integer number (110620610670).

Almost surely, 2^221241221339 is an apocalyptic number.

221241221339 is a deficient number, since it is larger than the sum of its proper divisors (1).

221241221339 is an equidigital number, since it uses as much as digits as its factorization.

221241221339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The spelling of 221241221339 in words is "two hundred twenty-one billion, two hundred forty-one million, two hundred twenty-one thousand, three hundred thirty-nine".