11250505212 has 24 divisors (see below), whose sum is σ = 26442797136. Its totient is φ = 3722794368.

The previous prime is 11250505193. The next prime is 11250505237. The reversal of 11250505212 is 21250505211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3420043 + ... + 3423330.

It is an arithmetic number, because the mean of its divisors is an integer number (1101783214).

Almost surely, 2^11250505212 is an apocalyptic number.

11250505212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11250505212 is an abundant number, since it is smaller than the sum of its proper divisors (15192291924).

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

11250505212 is a wasteful number, since it uses less digits than its factorization.

11250505212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843517 (or 6843515 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Subtracting 11250505212 from its reverse (21250505211), we obtain a palindrome (9999999999).

The spelling of 11250505212 in words is "eleven billion, two hundred fifty million, five hundred five thousand, two hundred twelve".