221002220211011 has 2 divisors, whose sum is σ = 221002220211012. Its totient is φ = 221002220211010.

The previous prime is 221002220210939. The next prime is 221002220211041. The reversal of 221002220211011 is 110112022200122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221002220211011 is a prime.

It is not a weakly prime, because it can be changed into another prime (221002220211041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501110105505 + 110501110105506.

It is an arithmetic number, because the mean of its divisors is an integer number (110501110105506).

Almost surely, 2^{221002220211011} is an apocalyptic number.

221002220211011 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002220211011 is an equidigital number, since it uses as much as digits as its factorization.

221002220211011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221002220211011 its reverse (110112022200122), we get a palindrome (331114242411133).

The spelling of 221002220211011 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, two hundred eleven thousand, eleven".