215232212 has 48 divisors (see below), whose sum is σ = 414554112. Its totient is φ = 97180800.

The previous prime is 215232211. The next prime is 215232221. The reversal of 215232212 is 212232512.

215232212 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-3 number, since 3×215232212³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215232211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561773 + ... + 562155.

It is an arithmetic number, because the mean of its divisors is an integer number (8636544).

Almost surely, 2^215232212 is an apocalyptic number.

It is an amenable number.

215232212 is a deficient number, since it is larger than the sum of its proper divisors (199321900).

215232212 is a wasteful number, since it uses less digits than its factorization.

215232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 606 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 215232212 is about 14670.7945251782. The cubic root of 215232212 is about 599.2882411847.

Adding to 215232212 its reverse (212232512), we get a palindrome (427464724).

The spelling of 215232212 in words is "two hundred fifteen million, two hundred thirty-two thousand, two hundred twelve".