213211213232 has 20 divisors (see below), whose sum is σ = 426422427456. Its totient is φ = 103166715840.

The previous prime is 213211213231. The next prime is 213211213247. The reversal of 213211213232 is 232312112312.

213211213232 is an admirable number.

It is a super-2 number, since 2×213211213232² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213211213198 and 213211213207.

It is not an unprimeable number, because it can be changed into a prime (213211213231) 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 3 ways as a sum of consecutive naturals, for example, 214930163 + ... + 214931154.

Almost surely, 2^213211213232 is an apocalyptic number.

It is an amenable number.

213211213232 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213211213232 is a wasteful number, since it uses less digits than its factorization.

213211213232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429861356 (or 429861350 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 213211213232 its reverse (232312112312), we get a palindrome (445523325544).

The spelling of 213211213232 in words is "two hundred thirteen billion, two hundred eleven million, two hundred thirteen thousand, two hundred thirty-two".