201020101120 has 40 divisors (see below), whose sum is σ = 481977107964. Its totient is φ = 80408039424.

The previous prime is 201020101109. The next prime is 201020101123. The reversal of 201020101120 is 21101020102.

It can be written as a sum of positive squares in 2 ways, for example, as 189552261376 + 11467839744 = 435376^2 + 107088^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 201020101097 and 201020101106.

It is not an unprimeable number, because it can be changed into a prime (201020101123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39259179 + ... + 39264298.

Almost surely, 2^201020101120 is an apocalyptic number.

201020101120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020101120 is an abundant number, since it is smaller than the sum of its proper divisors (280957006844).

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

201020101120 is an frugal number, since it uses more digits than its factorization.

201020101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78523500 (or 78523484 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201020101120 its reverse (21101020102), we get a palindrome (222121121222).

The spelling of 201020101120 in words is "two hundred one billion, twenty million, one hundred one thousand, one hundred twenty".