20020011021111 has 8 divisors (see below), whose sum is σ = 26714218516480. Its totient is φ = 13336238769912.

The previous prime is 20020011021097. The next prime is 20020011021121. The reversal of 20020011021111 is 11112011002002.

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

It is not a de Polignac number, because 20020011021111 - 2⁹ = 20020011020599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020011021121) 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, 2608806565 + ... + 2608814238.

It is an arithmetic number, because the mean of its divisors is an integer number (3339277314560).

Almost surely, 2^{20020011021111} is an apocalyptic number.

20020011021111 is a deficient number, since it is larger than the sum of its proper divisors (6694207495369).

20020011021111 is a wasteful number, since it uses less digits than its factorization.

20020011021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217622085.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20020011021111 its reverse (11112011002002), we get a palindrome (31132022023113).

The spelling of 20020011021111 in words is "twenty trillion, twenty billion, eleven million, twenty-one thousand, one hundred eleven".