1110222221021 has 2 divisors, whose sum is σ = 1110222221022. Its totient is φ = 1110222221020.

The previous prime is 1110222221011. The next prime is 1110222221089. The reversal of 1110222221021 is 1201222220111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 839550712900 + 270671508121 = 916270^2 + 520261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110222221021 - 2¹⁸ = 1110221958877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110222221011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555111110510 + 555111110511.

It is an arithmetic number, because the mean of its divisors is an integer number (555111110511).

Almost surely, 2^{1110222221021} is an apocalyptic number.

It is an amenable number.

1110222221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110222221021 is an equidigital number, since it uses as much as digits as its factorization.

1110222221021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1110222221021 its reverse (1201222220111), we get a palindrome (2311444441132).

The spelling of 1110222221021 in words is "one trillion, one hundred ten billion, two hundred twenty-two million, two hundred twenty-one thousand, twenty-one".