201120210110020 has 24 divisors (see below), whose sum is σ = 422356848571224. Its totient is φ = 80447244550656.

The previous prime is 201120210110003. The next prime is 201120210110021. The reversal of 201120210110020 is 20011012021102.

It can be written as a sum of positive squares in 4 ways, for example, as 61469645506564 + 139650564603456 = 7840258^2 + 11817384^2 .

It is not an unprimeable number, because it can be changed into a prime (201120210110021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50502037 + ... + 54338716.

It is an arithmetic number, because the mean of its divisors is an integer number (17598202023801).

Almost surely, 2^{201120210110020} is an apocalyptic number.

201120210110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120210110020 is an abundant number, since it is smaller than the sum of its proper divisors (221236638461204).

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

201120210110020 is a wasteful number, since it uses less digits than its factorization.

201120210110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104936679 (or 104936677 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201120210110020 its reverse (20011012021102), we get a palindrome (221131222131122).

The spelling of 201120210110020 in words is "two hundred one trillion, one hundred twenty billion, two hundred ten million, one hundred ten thousand, twenty".