100012215 has 8 divisors (see below), whose sum is σ = 160019568. Its totient is φ = 53339840.

The previous prime is 100012189. The next prime is 100012217. The reversal of 100012215 is 512210001.

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

It is not a de Polignac number, because 100012215 - 2⁸ = 100011959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100012215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012217) 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, 3333726 + ... + 3333755.

It is an arithmetic number, because the mean of its divisors is an integer number (20002446).

Almost surely, 2^100012215 is an apocalyptic number.

100012215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100012215 is a deficient number, since it is larger than the sum of its proper divisors (60007353).

100012215 is an equidigital number, since it uses as much as digits as its factorization.

100012215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667489.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 100012215 is about 10000.6107313504. The cubic root of 100012215 is about 464.1777815944.

Adding to 100012215 its reverse (512210001), we get a palindrome (612222216).

The spelling of 100012215 in words is "one hundred million, twelve thousand, two hundred fifteen".