212426310500 has 24 divisors (see below), whose sum is σ = 463939063224. Its totient is φ = 84970524000.

The previous prime is 212426310463. The next prime is 212426310511. The reversal of 212426310500 is 5013624212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 732460096 + 211693850404 = 27064^2 + 460102^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212426310500.

It is an unprimeable number.

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, 212425811 + ... + 212426810.

It is an arithmetic number, because the mean of its divisors is an integer number (19330794301).

Almost surely, 2^212426310500 is an apocalyptic number.

212426310500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212426310500 is an abundant number, since it is smaller than the sum of its proper divisors (251512752724).

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

212426310500 is a wasteful number, since it uses less digits than its factorization.

212426310500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424852640 (or 424852628 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 212426310500 its reverse (5013624212), we get a palindrome (217439934712).

The spelling of 212426310500 in words is "two hundred twelve billion, four hundred twenty-six million, three hundred ten thousand, five hundred".