20010002102111 has 36 divisors (see below), whose sum is σ = 24735945096648. Its totient is φ = 16136497698048.

The previous prime is 20010002102003. The next prime is 20010002102113. The reversal of 20010002102111 is 11120120001002.

It is not a de Polignac number, because 20010002102111 - 2¹⁰ = 20010002101087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010002102092 and 20010002102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010002102113) 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 35 ways as a sum of consecutive naturals, for example, 37873220 + ... + 38397926.

It is an arithmetic number, because the mean of its divisors is an integer number (687109586018).

Almost surely, 2^{20010002102111} is an apocalyptic number.

20010002102111 is a deficient number, since it is larger than the sum of its proper divisors (4725942994537).

20010002102111 is a wasteful number, since it uses less digits than its factorization.

20010002102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527448 (or 527424 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20010002102111 its reverse (11120120001002), we get a palindrome (31130122103113).

The spelling of 20010002102111 in words is "twenty trillion, ten billion, two million, one hundred two thousand, one hundred eleven".