212101415 has 8 divisors (see below), whose sum is σ = 254702448. Its totient is φ = 169560640.

The previous prime is 212101399. The next prime is 212101441. The reversal of 212101415 is 514101212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212101415 - 2⁴ = 212101399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212101393 and 212101402.

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 7 ways as a sum of consecutive naturals, for example, 6917 + ... + 21726.

It is an arithmetic number, because the mean of its divisors is an integer number (31837806).

Almost surely, 2^212101415 is an apocalyptic number.

212101415 is a deficient number, since it is larger than the sum of its proper divisors (42601033).

212101415 is a wasteful number, since it uses less digits than its factorization.

212101415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30129.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 212101415 is about 14563.7019675631. The cubic root of 212101415 is about 596.3682608784.

Adding to 212101415 its reverse (514101212), we get a palindrome (726202627).

The spelling of 212101415 in words is "two hundred twelve million, one hundred one thousand, four hundred fifteen".