118222127 has 4 divisors (see below), whose sum is σ = 122035776. Its totient is φ = 114408480.

The previous prime is 118222073. The next prime is 118222187. The reversal of 118222127 is 721222811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 721222811 = 227 ⋅3177193.

It is a cyclic number.

It is not a de Polignac number, because 118222127 - 2⁸ = 118221871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118222096 and 118222105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118222187) 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 in 3 ways as a sum of consecutive naturals, for example, 1906778 + ... + 1906839.

It is an arithmetic number, because the mean of its divisors is an integer number (30508944).

Almost surely, 2^118222127 is an apocalyptic number.

118222127 is a deficient number, since it is larger than the sum of its proper divisors (3813649).

118222127 is an equidigital number, since it uses as much as digits as its factorization.

118222127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813648.

The product of its digits is 896, while the sum is 26.

The square root of 118222127 is about 10872.9999080291. Note that the first 4 decimals coincide. The cubic root of 118222127 is about 490.7943896266.

Adding to 118222127 its reverse (721222811), we get a palindrome (839444938).

The spelling of 118222127 in words is "one hundred eighteen million, two hundred twenty-two thousand, one hundred twenty-seven".