221010020201611 has 2 divisors, whose sum is σ = 221010020201612. Its totient is φ = 221010020201610.

The previous prime is 221010020201491. The next prime is 221010020201629. The reversal of 221010020201611 is 116102020010122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221010020201611 - 2⁷ = 221010020201483 is a prime.

It is not a weakly prime, because it can be changed into another prime (221010020201911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505010100805 + 110505010100806.

It is an arithmetic number, because the mean of its divisors is an integer number (110505010100806).

Almost surely, 2^{221010020201611} is an apocalyptic number.

221010020201611 is a deficient number, since it is larger than the sum of its proper divisors (1).

221010020201611 is an equidigital number, since it uses as much as digits as its factorization.

221010020201611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 221010020201611 its reverse (116102020010122), we get a palindrome (337112040211733).

The spelling of 221010020201611 in words is "two hundred twenty-one trillion, ten billion, twenty million, two hundred one thousand, six hundred eleven".