10221221110211 has 2 divisors, whose sum is σ = 10221221110212. Its totient is φ = 10221221110210.

The previous prime is 10221221110171. The next prime is 10221221110241. The reversal of 10221221110211 is 11201112212201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10221221110211 - 2³⁸ = 9946343203267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10221221110211.

It is not a weakly prime, because it can be changed into another prime (10221221110241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110610555105 + 5110610555106.

It is an arithmetic number, because the mean of its divisors is an integer number (5110610555106).

Almost surely, 2^{10221221110211} is an apocalyptic number.

10221221110211 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221221110211 is an equidigital number, since it uses as much as digits as its factorization.

10221221110211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10221221110211 its reverse (11201112212201), we get a palindrome (21422333322412).

The spelling of 10221221110211 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred ten thousand, two hundred eleven".