20100020202111 has 8 divisors (see below), whose sum is σ = 27065373737904. Its totient is φ = 13267340067200.

The previous prime is 20100020202049. The next prime is 20100020202133. The reversal of 20100020202111 is 11120202000102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20100020202111 - 2²⁷ = 20099885984383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100020202161) 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, 33168349866 + ... + 33168350471.

It is an arithmetic number, because the mean of its divisors is an integer number (3383171717238).

Almost surely, 2^{20100020202111} is an apocalyptic number.

20100020202111 is a deficient number, since it is larger than the sum of its proper divisors (6965353535793).

20100020202111 is a wasteful number, since it uses less digits than its factorization.

20100020202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66336700441.

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

Adding to 20100020202111 its reverse (11120202000102), we get a palindrome (31220222202213).

The spelling of 20100020202111 in words is "twenty trillion, one hundred billion, twenty million, two hundred two thousand, one hundred eleven".