11111112201020 has 48 divisors (see below), whose sum is σ = 25128461040480. Its totient is φ = 4102523126016.

The previous prime is 11111112200999. The next prime is 11111112201097. The reversal of 11111112201020 is 2010221111111.

It is a junction number, because it is equal to n+sod(n) for n = 11111112200986 and 11111112201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40054919 + ... + 40331361.

It is an arithmetic number, because the mean of its divisors is an integer number (523509605010).

Almost surely, 2^{11111112201020} is an apocalyptic number.

11111112201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111112201020 is an abundant number, since it is smaller than the sum of its proper divisors (14017348839460).

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

11111112201020 is a wasteful number, since it uses less digits than its factorization.

11111112201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431054 (or 431052 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11111112201020 its reverse (2010221111111), we get a palindrome (13121333312131).

The spelling of 11111112201020 in words is "eleven trillion, one hundred eleven billion, one hundred twelve million, two hundred one thousand, twenty".