20012000102001 has 8 divisors (see below), whose sum is σ = 29647407558560. Its totient is φ = 13341333401316.

The previous prime is 20012000101963. The next prime is 20012000102089. The reversal of 20012000102001 is 10020100021002.

It is not a de Polignac number, because 20012000102001 - 2¹¹ = 20012000099953 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20012000102201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370592594455 + ... + 370592594508.

It is an arithmetic number, because the mean of its divisors is an integer number (3705925944820).

Almost surely, 2^{20012000102001} is an apocalyptic number.

It is an amenable number.

20012000102001 is a deficient number, since it is larger than the sum of its proper divisors (9635407456559).

20012000102001 is an equidigital number, since it uses as much as digits as its factorization.

20012000102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741185188972 (or 741185188966 counting only the distinct ones).

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

Adding to 20012000102001 its reverse (10020100021002), we get a palindrome (30032100123003).

The spelling of 20012000102001 in words is "twenty trillion, twelve billion, one hundred two thousand, one".