100216250 has 20 divisors (see below), whose sum is σ = 187847682. Its totient is φ = 40086000.

The previous prime is 100216231. The next prime is 100216253. The reversal of 100216250 is 52612001.

It can be written as a sum of positive squares in 5 ways, for example, as 196249 + 100020001 = 443^2 + 10001^2 .

It is not an unprimeable number, because it can be changed into a prime (100216253) 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 9 ways as a sum of consecutive naturals, for example, 38837 + ... + 41336.

Almost surely, 2^100216250 is an apocalyptic number.

100216250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100216250 is a deficient number, since it is larger than the sum of its proper divisors (87631432).

100216250 is an frugal number, since it uses more digits than its factorization.

100216250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80195 (or 80180 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 100216250 is about 10010.8066608041. The cubic root of 100216250 is about 464.4932236684.

Adding to 100216250 its reverse (52612001), we get a palindrome (152828251).

The spelling of 100216250 in words is "one hundred million, two hundred sixteen thousand, two hundred fifty".