100220215 has 8 divisors (see below), whose sum is σ = 122823360. Its totient is φ = 78470112.

The previous prime is 100220213. The next prime is 100220227. The reversal of 100220215 is 512022001.

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

It is a cyclic number.

It is not a de Polignac number, because 100220215 - 2¹ = 100220213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100220195 and 100220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220213) 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, 213000 + ... + 213469.

It is an arithmetic number, because the mean of its divisors is an integer number (15352920).

Almost surely, 2^100220215 is an apocalyptic number.

100220215 is a deficient number, since it is larger than the sum of its proper divisors (22603145).

100220215 is an equidigital number, since it uses as much as digits as its factorization.

100220215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426521.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 100220215 is about 10011.0046948346. The cubic root of 100220215 is about 464.4993493927.

Adding to 100220215 its reverse (512022001), we get a palindrome (612242216).

The spelling of 100220215 in words is "one hundred million, two hundred twenty thousand, two hundred fifteen".