212215414 has 4 divisors (see below), whose sum is σ = 318323124. Its totient is φ = 106107706.

The previous prime is 212215361. The next prime is 212215433. The reversal of 212215414 is 414512212.

212215414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53053852 + ... + 53053855.

It is an arithmetic number, because the mean of its divisors is an integer number (79580781).

Almost surely, 2^212215414 is an apocalyptic number.

212215414 is a deficient number, since it is larger than the sum of its proper divisors (106107710).

212215414 is a wasteful number, since it uses less digits than its factorization.

212215414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106107709.

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

The square root of 212215414 is about 14567.6152475276. The cubic root of 212215414 is about 596.4750858908.

Adding to 212215414 its reverse (414512212), we get a palindrome (626727626).

The spelling of 212215414 in words is "two hundred twelve million, two hundred fifteen thousand, four hundred fourteen".