11812227036 has 24 divisors (see below), whose sum is σ = 27565315344. Its totient is φ = 3936915840.

The previous prime is 11812227029. The next prime is 11812227041. The reversal of 11812227036 is 63072221811.

It is a junction number, because it is equal to n+sod(n) for n = 11812226988 and 11812227006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45616 + ... + 160328.

It is an arithmetic number, because the mean of its divisors is an integer number (1148554806).

Almost surely, 2^11812227036 is an apocalyptic number.

It is an amenable number.

11812227036 is an abundant number, since it is smaller than the sum of its proper divisors (15753088308).

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

11812227036 is a wasteful number, since it uses less digits than its factorization.

11812227036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123301 (or 123299 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

Adding to 11812227036 its reverse (63072221811), we get a palindrome (74884448847).

The spelling of 11812227036 in words is "eleven billion, eight hundred twelve million, two hundred twenty-seven thousand, thirty-six".