12041121216 has 56 divisors (see below), whose sum is σ = 33732856080. Its totient is φ = 3777605632.

The previous prime is 12041121181. The next prime is 12041121217. The reversal of 12041121216 is 61212114021.

It is a junction number, because it is equal to n+sod(n) for n = 12041121192 and 12041121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041121217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1841271 + ... + 1847798.

It is an arithmetic number, because the mean of its divisors is an integer number (602372430).

Almost surely, 2^12041121216 is an apocalyptic number.

12041121216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12041121216 is an abundant number, since it is smaller than the sum of its proper divisors (21691734864).

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

12041121216 is a wasteful number, since it uses less digits than its factorization.

12041121216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689101 (or 3689091 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12041121216 its reverse (61212114021), we get a palindrome (73253235237).

The spelling of 12041121216 in words is "twelve billion, forty-one million, one hundred twenty-one thousand, two hundred sixteen".