20112102022020 has 96 divisors (see below), whose sum is σ = 58288099201920. Its totient is φ = 5175412300800.

The previous prime is 20112102021997. The next prime is 20112102022031. The reversal of 20112102022020 is 2022020121102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75222 + ... + 6342701.

It is an arithmetic number, because the mean of its divisors is an integer number (607167700020).

Almost surely, 2^{20112102022020} is an apocalyptic number.

20112102022020 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 20112102022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29144049600960).

20112102022020 is an abundant number, since it is smaller than the sum of its proper divisors (38175997179900).

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

20112102022020 is a wasteful number, since it uses less digits than its factorization.

20112102022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419765 (or 6419763 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20112102022020 its reverse (2022020121102), we get a palindrome (22134122143122).

The spelling of 20112102022020 in words is "twenty trillion, one hundred twelve billion, one hundred two million, twenty-two thousand, twenty".