11102121210120 has 64 divisors (see below), whose sum is σ = 33308035237440. Its totient is φ = 2960417068800.

The previous prime is 11102121210097. The next prime is 11102121210151. The reversal of 11102121210120 is 2101212120111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11102121210120.

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, 89650 + ... + 4712990.

It is an arithmetic number, because the mean of its divisors is an integer number (520438050585).

Almost surely, 2^{11102121210120} is an apocalyptic number.

11102121210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11102121210120 is an abundant number, since it is smaller than the sum of its proper divisors (22205914027320).

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

11102121210120 is a wasteful number, since it uses less digits than its factorization.

11102121210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643366 (or 4643362 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11102121210120 its reverse (2101212120111), we get a palindrome (13203333330231).

Subtracting from 11102121210120 its reverse (2101212120111), we obtain a palindrome (9000909090009).

The spelling of 11102121210120 in words is "eleven trillion, one hundred two billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty".