212335224172 has 6 divisors (see below), whose sum is σ = 371586642308. Its totient is φ = 106167612084.

The previous prime is 212335224161. The next prime is 212335224197. The reversal of 212335224172 is 271422533212.

It is a happy number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26541903018 + ... + 26541903025.

Almost surely, 2^212335224172 is an apocalyptic number.

It is an amenable number.

212335224172 is a deficient number, since it is larger than the sum of its proper divisors (159251418136).

212335224172 is a wasteful number, since it uses less digits than its factorization.

212335224172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53083806047 (or 53083806045 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

Adding to 212335224172 its reverse (271422533212), we get a palindrome (483757757384).

The spelling of 212335224172 in words is "two hundred twelve billion, three hundred thirty-five million, two hundred twenty-four thousand, one hundred seventy-two".