212045212452 has 24 divisors (see below), whose sum is σ = 495262549600. Its totient is φ = 70611682176.

The previous prime is 212045212451. The next prime is 212045212459. The reversal of 212045212452 is 254212540212.

It is not an unprimeable number, because it can be changed into a prime (212045212451) 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, 8744302 + ... + 8768517.

Almost surely, 2^212045212452 is an apocalyptic number.

It is an amenable number.

212045212452 is an abundant number, since it is smaller than the sum of its proper divisors (283217337148).

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

212045212452 is a wasteful number, since it uses less digits than its factorization.

212045212452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17513835 (or 17513833 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 212045212452 its reverse (254212540212), we get a palindrome (466257752664).

The spelling of 212045212452 in words is "two hundred twelve billion, forty-five million, two hundred twelve thousand, four hundred fifty-two".