221339883049 has 2 divisors, whose sum is σ = 221339883050. Its totient is φ = 221339883048.

The previous prime is 221339883031. The next prime is 221339883097. The reversal of 221339883049 is 940388933122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133111874025 + 88228009024 = 364845^2 + 297032^2 .

It is a cyclic number.

It is not a de Polignac number, because 221339883049 - 2⁹ = 221339882537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221339882987 and 221339883005.

It is not a weakly prime, because it can be changed into another prime (221339884049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110669941524 + 110669941525.

It is an arithmetic number, because the mean of its divisors is an integer number (110669941525).

Almost surely, 2^221339883049 is an apocalyptic number.

It is an amenable number.

221339883049 is a deficient number, since it is larger than the sum of its proper divisors (1).

221339883049 is an equidigital number, since it uses as much as digits as its factorization.

221339883049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 221339883049 in words is "two hundred twenty-one billion, three hundred thirty-nine million, eight hundred eighty-three thousand, forty-nine".