20001012002011 has 4 divisors (see below), whose sum is σ = 20241988050312. Its totient is φ = 19760035953712.

The previous prime is 20001012002003. The next prime is 20001012002029. The reversal of 20001012002011 is 11020021010002.

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

It is a cyclic number.

It is not a de Polignac number, because 20001012002011 - 2³ = 20001012002003 is a prime.

It is a super-2 number, since 2×20001012002011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001012002611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120488024026 + ... + 120488024191.

It is an arithmetic number, because the mean of its divisors is an integer number (5060497012578).

Almost surely, 2^{20001012002011} is an apocalyptic number.

20001012002011 is a deficient number, since it is larger than the sum of its proper divisors (240976048301).

20001012002011 is an equidigital number, since it uses as much as digits as its factorization.

20001012002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240976048300.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20001012002011 its reverse (11020021010002), we get a palindrome (31021033012013).

The spelling of 20001012002011 in words is "twenty trillion, one billion, twelve million, two thousand, eleven".