12020102001 has 20 divisors (see below), whose sum is σ = 17964593152. Its totient is φ = 8009546328.

The previous prime is 12020101999. The next prime is 12020102041. The reversal of 12020102001 is 10020102021.

12020102001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12020102001 - 2¹ = 12020101999 is a prime.

It is a super-2 number, since 2×12020102001² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020102041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 138960 + ... + 208206.

Almost surely, 2^12020102001 is an apocalyptic number.

It is an amenable number.

12020102001 is a deficient number, since it is larger than the sum of its proper divisors (5944491151).

12020102001 is an equidigital number, since it uses as much as digits as its factorization.

12020102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71402 (or 71393 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12020102001 its reverse (10020102021), we get a palindrome (22040204022).

The spelling of 12020102001 in words is "twelve billion, twenty million, one hundred two thousand, one".