12012540351570 has 128 divisors (see below), whose sum is σ = 34948655642880. Its totient is φ = 2911874019840.

The previous prime is 12012540351541. The next prime is 12012540351607. The reversal of 12012540351570 is 7515304521021.

12012540351570 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 2 + 54 + 0 + 35 + 1 + 570 = 666.

12012540351570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12012540351570² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34626894 + ... + 34972086.

It is an arithmetic number, because the mean of its divisors is an integer number (273036372210).

Almost surely, 2^{12012540351570} is an apocalyptic number.

12012540351570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012540351570 is an abundant number, since it is smaller than the sum of its proper divisors (22936115291310).

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

12012540351570 is a wasteful number, since it uses less digits than its factorization.

12012540351570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356937 (or 356931 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 12012540351570 its reverse (7515304521021), we get a palindrome (19527844872591).

The spelling of 12012540351570 in words is "twelve trillion, twelve billion, five hundred forty million, three hundred fifty-one thousand, five hundred seventy".