213232111218 has 48 divisors (see below), whose sum is σ = 528150430080. Its totient is φ = 60906486528.

The previous prime is 213232111189. The next prime is 213232111219. The reversal of 213232111218 is 812111232312.

It is a happy number.

213232111218 is a `hidden beast` number, since 2 + 1 + 323 + 211 + 121 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 213232111191 and 213232111200.

It is not an unprimeable number, because it can be changed into a prime (213232111219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221803 + ... + 689681.

It is an arithmetic number, because the mean of its divisors is an integer number (11003133960).

Almost surely, 2^213232111218 is an apocalyptic number.

213232111218 is an abundant number, since it is smaller than the sum of its proper divisors (314918318862).

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

213232111218 is a wasteful number, since it uses less digits than its factorization.

213232111218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471511 (or 471508 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The spelling of 213232111218 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred eleven thousand, two hundred eighteen".