12012020000001 has 24 divisors (see below), whose sum is σ = 20313009435264. Its totient is φ = 6696596514240.

The previous prime is 12012019999949. The next prime is 12012020000017. The reversal of 12012020000001 is 10000002021021.

It is not a de Polignac number, because 12012020000001 - 2¹³ = 12012019991809 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (12012020000081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2325204541 + ... + 2325209706.

It is an arithmetic number, because the mean of its divisors is an integer number (846375393136).

Almost surely, 2^{12012020000001} is an apocalyptic number.

It is an amenable number.

12012020000001 is a deficient number, since it is larger than the sum of its proper divisors (8300989435263).

12012020000001 is a wasteful number, since it uses less digits than its factorization.

12012020000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4650414301 (or 4650414298 counting only the distinct ones).

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

Adding to 12012020000001 its reverse (10000002021021), we get a palindrome (22012022021022).

The spelling of 12012020000001 in words is "twelve trillion, twelve billion, twenty million, one", and thus it is an aban number and an uban number.