212134215 has 16 divisors (see below), whose sum is σ = 340055136. Its totient is φ = 112924800.

The previous prime is 212134133. The next prime is 212134229. The reversal of 212134215 is 512431212.

212134215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212134215 - 2¹² = 212130119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212134191 and 212134200.

It is a congruent number.

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, 4956 + ... + 21185.

It is an arithmetic number, because the mean of its divisors is an integer number (21253446).

Almost surely, 2^212134215 is an apocalyptic number.

212134215 is a deficient number, since it is larger than the sum of its proper divisors (127920921).

212134215 is a wasteful number, since it uses less digits than its factorization.

212134215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26690.

The product of its digits is 480, while the sum is 21.

The square root of 212134215 is about 14564.8280113429. The cubic root of 212134215 is about 596.3990006870.

Adding to 212134215 its reverse (512431212), we get a palindrome (724565427).

The spelling of 212134215 in words is "two hundred twelve million, one hundred thirty-four thousand, two hundred fifteen".