20021020111110 has 32 divisors (see below), whose sum is σ = 48050671299552. Its totient is φ = 5338913914880.

The previous prime is 20021020111063. The next prime is 20021020111111. The reversal of 20021020111110 is 1111102012002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021020111111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5556472 + ... + 8421188.

It is an arithmetic number, because the mean of its divisors is an integer number (1501583478111).

Almost surely, 2^{20021020111110} is an apocalyptic number.

20021020111110 is an abundant number, since it is smaller than the sum of its proper divisors (28029651188442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021020111110 is a wasteful number, since it uses less digits than its factorization.

20021020111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097688.

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

Adding to 20021020111110 its reverse (1111102012002), we get a palindrome (21132122123112).

The spelling of 20021020111110 in words is "twenty trillion, twenty-one billion, twenty million, one hundred eleven thousand, one hundred ten".