22111102020020 has 384 divisors, whose sum is σ = 57105750159360. Its totient is φ = 7109861806080.

The previous prime is 22111102020019. The next prime is 22111102020031. The reversal of 22111102020020 is 2002020111122.

It is a junction number, because it is equal to n+sod(n) for n = 22111102019977 and 22111102020004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 312078719 + ... + 312149561.

It is an arithmetic number, because the mean of its divisors is an integer number (148712891040).

Almost surely, 2^{22111102020020} is an apocalyptic number.

22111102020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22111102020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28552875079680).

22111102020020 is an abundant number, since it is smaller than the sum of its proper divisors (34994648139340).

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

22111102020020 is a wasteful number, since it uses less digits than its factorization.

22111102020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71015 (or 71013 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22111102020020 its reverse (2002020111122), we get a palindrome (24113122131142).

The spelling of 22111102020020 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, twenty thousand, twenty".