1100011202221 has 2 divisors, whose sum is σ = 1100011202222. Its totient is φ = 1100011202220.

The previous prime is 1100011202203. The next prime is 1100011202267. The reversal of 1100011202221 is 1222021100011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1098065068996 + 1946133225 = 1047886^2 + 44115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100011202221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100011202291) 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, 550005601110 + 550005601111.

It is an arithmetic number, because the mean of its divisors is an integer number (550005601111).

Almost surely, 2^{1100011202221} is an apocalyptic number.

It is an amenable number.

1100011202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100011202221 is an equidigital number, since it uses as much as digits as its factorization.

1100011202221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1100011202221 its reverse (1222021100011), we get a palindrome (2322032302232).

The spelling of 1100011202221 in words is "one trillion, one hundred billion, eleven million, two hundred two thousand, two hundred twenty-one".