12052121464 has 32 divisors (see below), whose sum is σ = 22954014720. Its totient is φ = 5931753696.

The previous prime is 12052121461. The next prime is 12052121519. The reversal of 12052121464 is 46412125021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12052121461) by changing a digit.

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, 93817 + ... + 181399.

It is an arithmetic number, because the mean of its divisors is an integer number (717312960).

Almost surely, 2^12052121464 is an apocalyptic number.

It is an amenable number.

12052121464 is a deficient number, since it is larger than the sum of its proper divisors (10901893256).

12052121464 is a wasteful number, since it uses less digits than its factorization.

12052121464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87859 (or 87855 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 12052121464 its reverse (46412125021), we get a palindrome (58464246485).

The spelling of 12052121464 in words is "twelve billion, fifty-two million, one hundred twenty-one thousand, four hundred sixty-four".