11121122111020 has 48 divisors (see below), whose sum is σ = 23460303944448. Its totient is φ = 4428270443520.

The previous prime is 11121122111009. The next prime is 11121122111059. The reversal of 11121122111020 is 2011122112111.

It is a junction number, because it is equal to n+sod(n) for n = 11121122110985 and 11121122111003.

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, 104743560 + ... + 104849680.

It is an arithmetic number, because the mean of its divisors is an integer number (488756332176).

Almost surely, 2^{11121122111020} is an apocalyptic number.

11121122111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121122111020 is an abundant number, since it is smaller than the sum of its proper divisors (12339181833428).

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

11121122111020 is a wasteful number, since it uses less digits than its factorization.

11121122111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129850 (or 129848 counting only the distinct ones).

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

Adding to 11121122111020 its reverse (2011122112111), we get a palindrome (13132244223131).

The spelling of 11121122111020 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred eleven thousand, twenty".