104221215 has 64 divisors (see below), whose sum is σ = 219110400. Its totient is φ = 45988992.

The previous prime is 104221189. The next prime is 104221217. The reversal of 104221215 is 512122401.

It is not a de Polignac number, because 104221215 - 2⁷ = 104221087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104221217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25504 + ... + 29306.

It is an arithmetic number, because the mean of its divisors is an integer number (3423600).

Almost surely, 2^104221215 is an apocalyptic number.

104221215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

104221215 is an abundant number, since it is smaller than the sum of its proper divisors (114889185).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104221215 is a wasteful number, since it uses less digits than its factorization.

104221215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 104221215 is about 10208.8792234995. The cubic root of 104221215 is about 470.6001312235.

Adding to 104221215 its reverse (512122401), we get a palindrome (616343616).

The spelling of 104221215 in words is "one hundred four million, two hundred twenty-one thousand, two hundred fifteen".