11102102120020 has 48 divisors (see below), whose sum is σ = 23330897694720. Its totient is φ = 4437702008064.

The previous prime is 11102102119991. The next prime is 11102102120027. The reversal of 11102102120020 is 2002120120111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102102120027) 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, 259999312 + ... + 260042008.

It is an arithmetic number, because the mean of its divisors is an integer number (486060368640).

Almost surely, 2^{11102102120020} is an apocalyptic number.

11102102120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11102102120020 is an abundant number, since it is smaller than the sum of its proper divisors (12228795574700).

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

11102102120020 is a wasteful number, since it uses less digits than its factorization.

11102102120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51592 (or 51590 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11102102120020 its reverse (2002120120111), we get a palindrome (13104222240131).

The spelling of 11102102120020 in words is "eleven trillion, one hundred two billion, one hundred two million, one hundred twenty thousand, twenty".