201120020 has 12 divisors (see below), whose sum is σ = 422352084. Its totient is φ = 80448000.

The previous prime is 201119969. The next prime is 201120041. The reversal of 201120020 is 20021102.

It can be written as a sum of positive squares in 2 ways, for example, as 88887184 + 112232836 = 9428^2 + 10594^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5027981 + ... + 5028020.

It is an arithmetic number, because the mean of its divisors is an integer number (35196007).

Almost surely, 2^201120020 is an apocalyptic number.

201120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120020 is an abundant number, since it is smaller than the sum of its proper divisors (221232064).

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

201120020 is a wasteful number, since it uses less digits than its factorization.

201120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056010 (or 10056008 counting only the distinct ones).

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

The square root of 201120020 is about 14181.6790261238. The cubic root of 201120020 is about 585.8931689530.

Adding to 201120020 its reverse (20021102), we get a palindrome (221141122).

The spelling of 201120020 in words is "two hundred one million, one hundred twenty thousand, twenty".