212214415 has 16 divisors (see below), whose sum is σ = 292787712. Its totient is φ = 144643104.

The previous prime is 212214407. The next prime is 212214449. The reversal of 212214415 is 514412212.

It is a cyclic number.

It is not a de Polignac number, because 212214415 - 2³ = 212214407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12309 + ... + 23998.

It is an arithmetic number, because the mean of its divisors is an integer number (18299232).

Almost surely, 2^212214415 is an apocalyptic number.

212214415 is a deficient number, since it is larger than the sum of its proper divisors (80573297).

212214415 is a wasteful number, since it uses less digits than its factorization.

212214415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36486.

The product of its digits is 640, while the sum is 22.

The square root of 212214415 is about 14567.5809591023. The cubic root of 212214415 is about 596.4741499243.

Adding to 212214415 its reverse (514412212), we get a palindrome (726626627).

The spelling of 212214415 in words is "two hundred twelve million, two hundred fourteen thousand, four hundred fifteen".