20102220011020 has 288 divisors, whose sum is σ = 53987270964480. Its totient is φ = 6239933521920.

The previous prime is 20102220010973. The next prime is 20102220011033. The reversal of 20102220011020 is 2011002220102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 130854174 + ... + 131007706.

It is an arithmetic number, because the mean of its divisors is an integer number (187455801960).

Almost surely, 2^{20102220011020} is an apocalyptic number.

20102220011020 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 20102220011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26993635482240).

20102220011020 is an abundant number, since it is smaller than the sum of its proper divisors (33885050953460).

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

20102220011020 is a wasteful number, since it uses less digits than its factorization.

20102220011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153873 (or 153864 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20102220011020 its reverse (2011002220102), we get a palindrome (22113222231122).

The spelling of 20102220011020 in words is "twenty trillion, one hundred two billion, two hundred twenty million, eleven thousand, twenty".