1110121221061 has 2 divisors, whose sum is σ = 1110121221062. Its totient is φ = 1110121221060.

The previous prime is 1110121221023. The next prime is 1110121221067. The reversal of 1110121221061 is 1601221210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100388412036 + 9732809025 = 1048994^2 + 98655^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110121221061 - 2³⁵ = 1075761482693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110121221067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555060610530 + 555060610531.

It is an arithmetic number, because the mean of its divisors is an integer number (555060610531).

Almost surely, 2^{1110121221061} is an apocalyptic number.

It is an amenable number.

1110121221061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110121221061 is an equidigital number, since it uses as much as digits as its factorization.

1110121221061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 1110121221061 its reverse (1601221210111), we get a palindrome (2711342431172).

The spelling of 1110121221061 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, two hundred twenty-one thousand, sixty-one".