10115212243520 has 56 divisors (see below), whose sum is σ = 24118501311288. Its totient is φ = 4040768000000.

The previous prime is 10115212243469. The next prime is 10115212243537. The reversal of 10115212243520 is 2534221251101.

It can be written as a sum of positive squares in 4 ways, for example, as 420742144 + 10114791501376 = 20512^2 + 3180376^2 .

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, 20525231 + ... + 21012270.

Almost surely, 2^{10115212243520} is an apocalyptic number.

10115212243520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10115212243520 is an abundant number, since it is smaller than the sum of its proper divisors (14003289067768).

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

10115212243520 is an equidigital number, since it uses as much as digits as its factorization.

10115212243520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41538279 (or 41538269 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 10115212243520 its reverse (2534221251101), we get a palindrome (12649433494621).

The spelling of 10115212243520 in words is "ten trillion, one hundred fifteen billion, two hundred twelve million, two hundred forty-three thousand, five hundred twenty".