11121211100120 has 32 divisors (see below), whose sum is σ = 27297518155920. Its totient is φ = 4044076763520.

The previous prime is 11121211100101. The next prime is 11121211100141. The reversal of 11121211100120 is 2100111212111.

It is a junction number, because it is equal to n+sod(n) for n = 11121211100095 and 11121211100104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12637739447 + ... + 12637740326.

Almost surely, 2^{11121211100120} is an apocalyptic number.

11121211100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121211100120 is an abundant number, since it is smaller than the sum of its proper divisors (16176307055800).

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

11121211100120 is a wasteful number, since it uses less digits than its factorization.

11121211100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25275479795 (or 25275479791 counting only the distinct ones).

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

Adding to 11121211100120 its reverse (2100111212111), we get a palindrome (13221322312231).

The spelling of 11121211100120 in words is "eleven trillion, one hundred twenty-one billion, two hundred eleven million, one hundred thousand, one hundred twenty".