12020002020001 has 16 divisors (see below), whose sum is σ = 12731651141328. Its totient is φ = 11308863846400.

The previous prime is 12020002019989. The next prime is 12020002020079. The reversal of 12020002020001 is 10002020002021.

It can be written as a sum of positive squares in 8 ways, for example, as 2131643800225 + 9888358219776 = 1460015^2 + 3144576^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020002020001 - 2⁵ = 12020002019969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12020002020001.

It is not an unprimeable number, because it can be changed into a prime (12020002090001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 777432411 + ... + 777447871.

It is an arithmetic number, because the mean of its divisors is an integer number (795728196333).

Almost surely, 2^{12020002020001} is an apocalyptic number.

It is an amenable number.

12020002020001 is a deficient number, since it is larger than the sum of its proper divisors (711649121327).

12020002020001 is a wasteful number, since it uses less digits than its factorization.

12020002020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29012.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12020002020001 its reverse (10002020002021), we get a palindrome (22022022022022).

The spelling of 12020002020001 in words is "twelve trillion, twenty billion, two million, twenty thousand, one".