110120021221181 has 2 divisors, whose sum is σ = 110120021221182. Its totient is φ = 110120021221180.

The previous prime is 110120021221069. The next prime is 110120021221253. The reversal of 110120021221181 is 181122120021011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109717957433956 + 402063787225 = 10474634^2 + 634085^2 .

It is a cyclic number.

It is not a de Polignac number, because 110120021221181 - 2³⁰ = 110118947479357 is a prime.

It is a super-2 number, since 2×110120021221181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110120021221681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55060010610590 + 55060010610591.

It is an arithmetic number, because the mean of its divisors is an integer number (55060010610591).

Almost surely, 2^{110120021221181} is an apocalyptic number.

It is an amenable number.

110120021221181 is a deficient number, since it is larger than the sum of its proper divisors (1).

110120021221181 is an equidigital number, since it uses as much as digits as its factorization.

110120021221181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 23.

Adding to 110120021221181 its reverse (181122120021011), we get a palindrome (291242141242192).

The spelling of 110120021221181 in words is "one hundred ten trillion, one hundred twenty billion, twenty-one million, two hundred twenty-one thousand, one hundred eighty-one".