12021011002 has 64 divisors (see below), whose sum is σ = 24237980928. Its totient is φ = 4318272000.

The previous prime is 12021010943. The next prime is 12021011003. The reversal of 12021011002 is 20011012021.

It is a self number, because there is not a number n which added to its sum of digits gives 12021011002.

It is not an unprimeable number, because it can be changed into a prime (12021011003) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2041102 + ... + 2046982.

It is an arithmetic number, because the mean of its divisors is an integer number (378718452).

Almost surely, 2^12021011002 is an apocalyptic number.

12021011002 is an abundant number, since it is smaller than the sum of its proper divisors (12216969926).

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

12021011002 is a wasteful number, since it uses less digits than its factorization.

12021011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6935.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12021011002 its reverse (20011012021), we get a palindrome (32032023023).

The spelling of 12021011002 in words is "twelve billion, twenty-one million, eleven thousand, two".