212118127 has 4 divisors (see below), whose sum is σ = 228434920. Its totient is φ = 195801336.

The previous prime is 212118119. The next prime is 212118131. The reversal of 212118127 is 721811212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 212118127 - 2³ = 212118119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212118187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8158377 + ... + 8158402.

It is an arithmetic number, because the mean of its divisors is an integer number (57108730).

Almost surely, 2^212118127 is an apocalyptic number.

212118127 is a deficient number, since it is larger than the sum of its proper divisors (16316793).

212118127 is a wasteful number, since it uses less digits than its factorization.

212118127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16316792.

The product of its digits is 448, while the sum is 25.

The square root of 212118127 is about 14564.2757114798. The cubic root of 212118127 is about 596.3839235817.

Adding to 212118127 its reverse (721811212), we get a palindrome (933929339).

The spelling of 212118127 in words is "two hundred twelve million, one hundred eighteen thousand, one hundred twenty-seven".