20002101022011 has 4 divisors (see below), whose sum is σ = 26669468029352. Its totient is φ = 13334734014672.

The previous prime is 20002101022009. The next prime is 20002101022061. The reversal of 20002101022011 is 11022010120002.

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

It is not a de Polignac number, because 20002101022011 - 2¹ = 20002101022009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002101022061) 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, 3333683503666 + ... + 3333683503671.

It is an arithmetic number, because the mean of its divisors is an integer number (6667367007338).

Almost surely, 2^{20002101022011} is an apocalyptic number.

20002101022011 is a deficient number, since it is larger than the sum of its proper divisors (6667367007341).

20002101022011 is an equidigital number, since it uses as much as digits as its factorization.

20002101022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667367007340.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20002101022011 its reverse (11022010120002), we get a palindrome (31024111142013).

The spelling of 20002101022011 in words is "twenty trillion, two billion, one hundred one million, twenty-two thousand, eleven".