212241551500 has 96 divisors (see below), whose sum is σ = 510683164992. Its totient is φ = 76414400000.

The previous prime is 212241551317. The next prime is 212241551519. The reversal of 212241551500 is 5155142212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364464 + ... + 746536.

It is an arithmetic number, because the mean of its divisors is an integer number (5319616302).

Almost surely, 2^212241551500 is an apocalyptic number.

212241551500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212241551500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255341582496).

212241551500 is an abundant number, since it is smaller than the sum of its proper divisors (298441613492).

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

212241551500 is a wasteful number, since it uses less digits than its factorization.

212241551500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382204 (or 382192 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 212241551500 its reverse (5155142212), we get a palindrome (217396693712).

The spelling of 212241551500 in words is "two hundred twelve billion, two hundred forty-one million, five hundred fifty-one thousand, five hundred".