11100202200020 has 48 divisors (see below), whose sum is σ = 23381291086608. Its totient is φ = 4426584422400.

The previous prime is 11100202199969. The next prime is 11100202200023. The reversal of 11100202200020 is 2000220200111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 464998520464 + 10635203679556 = 681908^2 + 3261166^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11100202199974 and 11100202200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100202200023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107120954 + ... + 107224526.

It is an arithmetic number, because the mean of its divisors is an integer number (487110230971).

Almost surely, 2^{11100202200020} is an apocalyptic number.

11100202200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100202200020 is an abundant number, since it is smaller than the sum of its proper divisors (12281088886588).

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

11100202200020 is a wasteful number, since it uses less digits than its factorization.

11100202200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119820 (or 119818 counting only the distinct ones).

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

Adding to 11100202200020 its reverse (2000220200111), we get a palindrome (13100422400131).

The spelling of 11100202200020 in words is "eleven trillion, one hundred billion, two hundred two million, two hundred thousand, twenty".