212204311 has 8 divisors (see below), whose sum is σ = 231613200. Its totient is φ = 192815040.

The previous prime is 212204273. The next prime is 212204327. The reversal of 212204311 is 113402212.

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

It is not a de Polignac number, because 212204311 - 2¹³ = 212196119 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 (212205311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26485 + ... + 33553.

It is an arithmetic number, because the mean of its divisors is an integer number (28951650).

Almost surely, 2^212204311 is an apocalyptic number.

212204311 is a deficient number, since it is larger than the sum of its proper divisors (19408889).

212204311 is a wasteful number, since it uses less digits than its factorization.

212204311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9809.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 212204311 is about 14567.2341575194. The cubic root of 212204311 is about 596.4646832874.

Adding to 212204311 its reverse (113402212), we get a palindrome (325606523).

The spelling of 212204311 in words is "two hundred twelve million, two hundred four thousand, three hundred eleven".