212212142231 has 8 divisors (see below), whose sum is σ = 215267317200. Its totient is φ = 209160971712.

The previous prime is 212212142203. The next prime is 212212142251. The reversal of 212212142231 is 132241212212.

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

It is a cyclic number.

It is not a de Polignac number, because 212212142231 - 2²⁶ = 212145033367 is a prime.

It is a super-2 number, since 2×212212142231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212212142197 and 212212142206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212142251) 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, 894281 + ... + 1106418.

It is an arithmetic number, because the mean of its divisors is an integer number (26908414650).

Almost surely, 2^212212142231 is an apocalyptic number.

212212142231 is a deficient number, since it is larger than the sum of its proper divisors (3055174969).

212212142231 is a wasteful number, since it uses less digits than its factorization.

212212142231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002225.

The product of its digits is 768, while the sum is 23.

Adding to 212212142231 its reverse (132241212212), we get a palindrome (344453354443).

The spelling of 212212142231 in words is "two hundred twelve billion, two hundred twelve million, one hundred forty-two thousand, two hundred thirty-one".