100212115 has 8 divisors (see below), whose sum is σ = 120315168. Its totient is φ = 80129280.

The previous prime is 100212113. The next prime is 100212121. The reversal of 100212115 is 511212001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100212115 - 2¹ = 100212113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100212095 and 100212104.

It is not an unprimeable number, because it can be changed into a prime (100212113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9859 + ... + 17251.

It is an arithmetic number, because the mean of its divisors is an integer number (15039396).

Almost surely, 2^100212115 is an apocalyptic number.

100212115 is a deficient number, since it is larger than the sum of its proper divisors (20103053).

100212115 is an equidigital number, since it uses as much as digits as its factorization.

100212115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10109.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 100212115 is about 10010.6001318602. The cubic root of 100212115 is about 464.4868351306.

Adding to 100212115 its reverse (511212001), we get a palindrome (611424116).

The spelling of 100212115 in words is "one hundred million, two hundred twelve thousand, one hundred fifteen".