11102201020 has 24 divisors (see below), whose sum is σ = 23354365104. Its totient is φ = 4433310336.

The previous prime is 11102201017. The next prime is 11102201063. The reversal of 11102201020 is 2010220111.

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 = 11102200988 and 11102201006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461097 + ... + 484576.

It is an arithmetic number, because the mean of its divisors is an integer number (973098546).

Almost surely, 2^11102201020 is an apocalyptic number.

11102201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11102201020 is an abundant number, since it is smaller than the sum of its proper divisors (12252164084).

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

11102201020 is a wasteful number, since it uses less digits than its factorization.

11102201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946269 (or 946267 counting only the distinct ones).

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

Adding to 11102201020 its reverse (2010220111), we get a palindrome (13112421131).

The spelling of 11102201020 in words is "eleven billion, one hundred two million, two hundred one thousand, twenty".