11210121111020 has 72 divisors (see below), whose sum is σ = 26370432038160. Its totient is φ = 3996393273600.

The previous prime is 11210121111019. The next prime is 11210121111031. The reversal of 11210121111020 is 2011112101211.

It is a junction number, because it is equal to n+sod(n) for n = 11210121110986 and 11210121111004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57084806 + ... + 57280845.

It is an arithmetic number, because the mean of its divisors is an integer number (366256000530).

Almost surely, 2^{11210121111020} is an apocalyptic number.

11210121111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210121111020 is an abundant number, since it is smaller than the sum of its proper divisors (15160310927140).

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

11210121111020 is a wasteful number, since it uses less digits than its factorization.

11210121111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114365715 (or 114365700 counting only the distinct ones).

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

Adding to 11210121111020 its reverse (2011112101211), we get a palindrome (13221233212231).

The spelling of 11210121111020 in words is "eleven trillion, two hundred ten billion, one hundred twenty-one million, one hundred eleven thousand, twenty".