12012100846520 has 16 divisors (see below), whose sum is σ = 27027226904760. Its totient is φ = 4804840338592.

The previous prime is 12012100846519. The next prime is 12012100846541. The reversal of 12012100846520 is 2564800121021.

It is a super-2 number, since 2×12012100846520² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150151260542 + ... + 150151260621.

Almost surely, 2^{12012100846520} is an apocalyptic number.

12012100846520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012100846520 is an abundant number, since it is smaller than the sum of its proper divisors (15015126058240).

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

12012100846520 is a wasteful number, since it uses less digits than its factorization.

12012100846520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300302521174 (or 300302521170 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

Adding to 12012100846520 its reverse (2564800121021), we get a palindrome (14576900967541).

The spelling of 12012100846520 in words is "twelve trillion, twelve billion, one hundred million, eight hundred forty-six thousand, five hundred twenty".