212414231 has 4 divisors (see below), whose sum is σ = 214086912. Its totient is φ = 210741552.

The previous prime is 212414207. The next prime is 212414233. The reversal of 212414231 is 132414212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212414231 is a prime.

It is a super-2 number, since 2×212414231² = 90239611062642722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212414233) 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, 836150 + ... + 836403.

It is an arithmetic number, because the mean of its divisors is an integer number (53521728).

Almost surely, 2^212414231 is an apocalyptic number.

212414231 is a deficient number, since it is larger than the sum of its proper divisors (1672681).

212414231 is a wasteful number, since it uses less digits than its factorization.

212414231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672680.

The product of its digits is 384, while the sum is 20.

The square root of 212414231 is about 14574.4375877768. The cubic root of 212414231 is about 596.6612997794.

Adding to 212414231 its reverse (132414212), we get a palindrome (344828443).

The spelling of 212414231 in words is "two hundred twelve million, four hundred fourteen thousand, two hundred thirty-one".