212104425252 has 24 divisors (see below), whose sum is σ = 494925984000. Its totient is φ = 70699238176.

The previous prime is 212104425251. The next prime is 212104425277. The reversal of 212104425252 is 252524401212.

It is a super-2 number, since 2×212104425252² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212104425251) 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 7 ways as a sum of consecutive naturals, for example, 140749 + ... + 666347.

It is an arithmetic number, because the mean of its divisors is an integer number (20621916000).

Almost surely, 2^212104425252 is an apocalyptic number.

It is an amenable number.

212104425252 is an abundant number, since it is smaller than the sum of its proper divisors (282821558748).

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

212104425252 is a wasteful number, since it uses less digits than its factorization.

212104425252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559235 (or 559233 counting only the distinct ones).

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

Adding to 212104425252 its reverse (252524401212), we get a palindrome (464628826464).

The spelling of 212104425252 in words is "two hundred twelve billion, one hundred four million, four hundred twenty-five thousand, two hundred fifty-two".