20020012001201 has 4 divisors (see below), whose sum is σ = 20041287254004. Its totient is φ = 19998736748400.

The previous prime is 20020012001189. The next prime is 20020012001237. The reversal of 20020012001201 is 10210021002002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14805872665600 + 5214139335601 = 3847840^2 + 2283449^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020012001201 - 2⁶ = 20020012001137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020012001501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10637624990 + ... + 10637626871.

It is an arithmetic number, because the mean of its divisors is an integer number (5010321813501).

Almost surely, 2^{20020012001201} is an apocalyptic number.

It is an amenable number.

20020012001201 is a deficient number, since it is larger than the sum of its proper divisors (21275252803).

20020012001201 is an equidigital number, since it uses as much as digits as its factorization.

20020012001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21275252802.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20020012001201 its reverse (10210021002002), we get a palindrome (30230033003203).

The spelling of 20020012001201 in words is "twenty trillion, twenty billion, twelve million, one thousand, two hundred one".