20020011122111 has 32 divisors (see below), whose sum is σ = 26889615277056. Its totient is φ = 14394864960000.

The previous prime is 20020011122093. The next prime is 20020011122141. The reversal of 20020011122111 is 11122111002002.

It is not a de Polignac number, because 20020011122111 - 2⁶ = 20020011122047 is a prime.

20020011122111 is a modest number, since divided by 11122111 gives 2002 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020011122141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 766355 + ... + 6373956.

It is an arithmetic number, because the mean of its divisors is an integer number (840300477408).

Almost surely, 2^{20020011122111} is an apocalyptic number.

20020011122111 is a deficient number, since it is larger than the sum of its proper divisors (6869604154945).

20020011122111 is a wasteful number, since it uses less digits than its factorization.

20020011122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143143.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20020011122111 its reverse (11122111002002), we get a palindrome (31142122124113).

It can be divided in two parts, 200200 and 11122111, that added together give a palindrome (11322311).

The spelling of 20020011122111 in words is "twenty trillion, twenty billion, eleven million, one hundred twenty-two thousand, one hundred eleven".