215182212 has 48 divisors (see below), whose sum is σ = 577030272. Its totient is φ = 61136640.

The previous prime is 215182199. The next prime is 215182229. The reversal of 215182212 is 212281512.

215182212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×215182212² = 92606768722425888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8128 + ... + 22280.

It is an arithmetic number, because the mean of its divisors is an integer number (12021464).

Almost surely, 2^215182212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215182212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288515136).

215182212 is an abundant number, since it is smaller than the sum of its proper divisors (361848060).

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

215182212 is a wasteful number, since it uses less digits than its factorization.

215182212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14348 (or 14346 counting only the distinct ones).

The product of its digits is 640, while the sum is 24.

The square root of 215182212 is about 14669.0903603461. The cubic root of 215182212 is about 599.2418312594.

The spelling of 215182212 in words is "two hundred fifteen million, one hundred eighty-two thousand, two hundred twelve".