212042343252 has 12 divisors (see below), whose sum is σ = 494765467616. Its totient is φ = 70680781080.

The previous prime is 212042343203. The next prime is 212042343287. The reversal of 212042343252 is 252343240212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8835097624 + ... + 8835097647.

Almost surely, 2^212042343252 is an apocalyptic number.

It is an amenable number.

212042343252 is an abundant number, since it is smaller than the sum of its proper divisors (282723124364).

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

212042343252 is a wasteful number, since it uses less digits than its factorization.

212042343252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17670195278 (or 17670195276 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 212042343252 its reverse (252343240212), we get a palindrome (464385583464).

The spelling of 212042343252 in words is "two hundred twelve billion, forty-two million, three hundred forty-three thousand, two hundred fifty-two".