11100102201020 has 72 divisors (see below), whose sum is σ = 27497879105760. Its totient is φ = 3752147199360.

The previous prime is 11100102200987. The next prime is 11100102201029. The reversal of 11100102201020 is 2010220100111.

It is a junction number, because it is equal to n+sod(n) for n = 11100102200992 and 11100102201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100102201029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79695455 + ... + 79834614.

It is an arithmetic number, because the mean of its divisors is an integer number (381914987580).

Almost surely, 2^{11100102201020} is an apocalyptic number.

11100102201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100102201020 is an abundant number, since it is smaller than the sum of its proper divisors (16397776904740).

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

11100102201020 is a wasteful number, since it uses less digits than its factorization.

11100102201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159530163 (or 159530154 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11100102201020 its reverse (2010220100111), we get a palindrome (13110322301131).

The spelling of 11100102201020 in words is "eleven trillion, one hundred billion, one hundred two million, two hundred one thousand, twenty".