212242415 has 32 divisors (see below), whose sum is σ = 318435840. Its totient is φ = 131932800.

The previous prime is 212242403. The next prime is 212242439. The reversal of 212242415 is 514242212.

It is not a de Polignac number, because 212242415 - 2⁶ = 212242351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207776 + ... + 208794.

It is an arithmetic number, because the mean of its divisors is an integer number (9951120).

Almost surely, 2^212242415 is an apocalyptic number.

212242415 is a deficient number, since it is larger than the sum of its proper divisors (106193425).

212242415 is a wasteful number, since it uses less digits than its factorization.

212242415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583.

The product of its digits is 1280, while the sum is 23.

The square root of 212242415 is about 14568.5419654817. The cubic root of 212242415 is about 596.5003821067.

Adding to 212242415 its reverse (514242212), we get a palindrome (726484627).

The spelling of 212242415 in words is "two hundred twelve million, two hundred forty-two thousand, four hundred fifteen".