118221650 has 12 divisors (see below), whose sum is σ = 219892362. Its totient is φ = 47288640.

The previous prime is 118221647. The next prime is 118221659. The reversal of 118221650 is 56122811.

It can be written as a sum of positive squares in 3 ways, for example, as 49182169 + 69039481 = 7013^2 + 8309^2 .

It is not an unprimeable number, because it can be changed into a prime (118221659) 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, 1182167 + ... + 1182266.

Almost surely, 2^118221650 is an apocalyptic number.

118221650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118221650 is a deficient number, since it is larger than the sum of its proper divisors (101670712).

118221650 is a wasteful number, since it uses less digits than its factorization.

118221650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364445 (or 2364440 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 118221650 is about 10872.9779729382. The cubic root of 118221650 is about 490.7937295436.

The spelling of 118221650 in words is "one hundred eighteen million, two hundred twenty-one thousand, six hundred fifty".