118222101 has 6 divisors (see below), whose sum is σ = 170765270. Its totient is φ = 78814728.

The previous prime is 118222073. The next prime is 118222187. The reversal of 118222101 is 101222811.

It can be written as a sum of positive squares in only one way, i.e., 72335025 + 45887076 = 8505^2 + 6774^2 .

It is not a de Polignac number, because 118222101 - 2⁶ = 118222037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118222201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6567886 + ... + 6567903.

Almost surely, 2^118222101 is an apocalyptic number.

It is an amenable number.

118222101 is a deficient number, since it is larger than the sum of its proper divisors (52543169).

118222101 is a wasteful number, since it uses less digits than its factorization.

118222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13135795 (or 13135792 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 118222101 is about 10872.9987124068. The cubic root of 118222101 is about 490.7943536473.

Adding to 118222101 its reverse (101222811), we get a palindrome (219444912).

The spelling of 118222101 in words is "one hundred eighteen million, two hundred twenty-two thousand, one hundred one".