206221211115041 has 2 divisors, whose sum is σ = 206221211115042. Its totient is φ = 206221211115040.

The previous prime is 206221211115019. The next prime is 206221211115067. The reversal of 206221211115041 is 140511112122602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107045923690000 + 99175287425041 = 10346300^2 + 9958679^2 .

It is a cyclic number.

It is not a de Polignac number, because 206221211115041 - 2²² = 206221206920737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206221211114995 and 206221211115013.

It is not a weakly prime, because it can be changed into another prime (206221211415041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103110605557520 + 103110605557521.

It is an arithmetic number, because the mean of its divisors is an integer number (103110605557521).

Almost surely, 2^{206221211115041} is an apocalyptic number.

It is an amenable number.

206221211115041 is a deficient number, since it is larger than the sum of its proper divisors (1).

206221211115041 is an equidigital number, since it uses as much as digits as its factorization.

206221211115041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

Adding to 206221211115041 its reverse (140511112122602), we get a palindrome (346732323237643).

The spelling of 206221211115041 in words is "two hundred six trillion, two hundred twenty-one billion, two hundred eleven million, one hundred fifteen thousand, forty-one".