212133424242 has 16 divisors (see below), whose sum is σ = 424275268032. Its totient is φ = 70709738160.

The previous prime is 212133424231. The next prime is 212133424249. The reversal of 212133424242 is 242424331212.

It is not an unprimeable number, because it can be changed into a prime (212133424249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4392 + ... + 651372.

It is an arithmetic number, because the mean of its divisors is an integer number (26517204252).

Almost surely, 2^212133424242 is an apocalyptic number.

212133424242 is an abundant number, since it is smaller than the sum of its proper divisors (212141843790).

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

212133424242 is a wasteful number, since it uses less digits than its factorization.

212133424242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701633.

The product of its digits is 18432, while the sum is 30.

Adding to 212133424242 its reverse (242424331212), we get a palindrome (454557755454).

The spelling of 212133424242 in words is "two hundred twelve billion, one hundred thirty-three million, four hundred twenty-four thousand, two hundred forty-two".