221002222112011 has 2 divisors, whose sum is σ = 221002222112012. Its totient is φ = 221002222112010.

The previous prime is 221002222112003. The next prime is 221002222112017. The reversal of 221002222112011 is 110211222200122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221002222112011 - 2³ = 221002222112003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221002222112011.

It is not a weakly prime, because it can be changed into another prime (221002222112017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501111056005 + 110501111056006.

It is an arithmetic number, because the mean of its divisors is an integer number (110501111056006).

Almost surely, 2^{221002222112011} is an apocalyptic number.

221002222112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002222112011 is an equidigital number, since it uses as much as digits as its factorization.

221002222112011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221002222112011 its reverse (110211222200122), we get a palindrome (331213444312133).

The spelling of 221002222112011 in words is "two hundred twenty-one trillion, two billion, two hundred twenty-two million, one hundred twelve thousand, eleven".