110002181 has 2 divisors, whose sum is σ = 110002182. Its totient is φ = 110002180.

The previous prime is 110002177. The next prime is 110002183. The reversal of 110002181 is 181200011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88924900 + 21077281 = 9430^2 + 4591^2 .

It is a cyclic number.

It is not a de Polignac number, because 110002181 - 2² = 110002177 is a prime.

It is a super-2 number, since 2×110002181² = 24200959649513522, which contains 22 as substring.

Together with 110002183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110002183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55001090 + 55001091.

It is an arithmetic number, because the mean of its divisors is an integer number (55001091).

Almost surely, 2^110002181 is an apocalyptic number.

It is an amenable number.

110002181 is a deficient number, since it is larger than the sum of its proper divisors (1).

110002181 is an equidigital number, since it uses as much as digits as its factorization.

110002181 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 14.

The square root of 110002181 is about 10488.1924562815. The cubic root of 110002181 is about 479.1451523783.

Adding to 110002181 its reverse (181200011), we get a palindrome (291202192).

The spelling of 110002181 in words is "one hundred ten million, two thousand, one hundred eighty-one".