118955221 has 12 divisors (see below), whose sum is σ = 149432416. Its totient is φ = 92691720.

The previous prime is 118955203. The next prime is 118955231. The reversal of 118955221 is 122559811.

It is not a de Polignac number, because 118955221 - 2⁵ = 118955189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118955231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69375 + ... + 71068.

Almost surely, 2^118955221 is an apocalyptic number.

118955221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118955221 is a deficient number, since it is larger than the sum of its proper divisors (30477195).

118955221 is a wasteful number, since it uses less digits than its factorization.

118955221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140472 (or 140461 counting only the distinct ones).

The product of its digits is 7200, while the sum is 34.

The square root of 118955221 is about 10906.6594794190. The cubic root of 118955221 is about 491.8067699679.

The spelling of 118955221 in words is "one hundred eighteen million, nine hundred fifty-five thousand, two hundred twenty-one".