10100215 has 4 divisors (see below), whose sum is σ = 12120264. Its totient is φ = 8080168.

The previous prime is 10100213. The next prime is 10100219. The reversal of 10100215 is 51200101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10100215 - 2¹ = 10100213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010017 + ... + 1010026.

It is an arithmetic number, because the mean of its divisors is an integer number (3030066).

Almost surely, 2^10100215 is an apocalyptic number.

10100215 is a deficient number, since it is larger than the sum of its proper divisors (2020049).

10100215 is an equidigital number, since it uses as much as digits as its factorization.

10100215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020048.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 10100215 is about 3178.0835420108. The cubic root of 10100215 is about 216.1607670868.

Adding to 10100215 its reverse (51200101), we get a palindrome (61300316).

The spelling of 10100215 in words is "ten million, one hundred thousand, two hundred fifteen".