11202001020020 has 12 divisors (see below), whose sum is σ = 23524202142084. Its totient is φ = 4480800408000.

The previous prime is 11202001020019. The next prime is 11202001020029. The reversal of 11202001020020 is 2002010020211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2935835511184 + 8266165508836 = 1713428^2 + 2875094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11202001019983 and 11202001020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202001020029) 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, 280050025481 + ... + 280050025520.

It is an arithmetic number, because the mean of its divisors is an integer number (1960350178507).

Almost surely, 2^{11202001020020} is an apocalyptic number.

11202001020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11202001020020 is an abundant number, since it is smaller than the sum of its proper divisors (12322201122064).

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

11202001020020 is a wasteful number, since it uses less digits than its factorization.

11202001020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560100051010 (or 560100051008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11202001020020 its reverse (2002010020211), we get a palindrome (13204011040231).

The spelling of 11202001020020 in words is "eleven trillion, two hundred two billion, one million, twenty thousand, twenty".