12011111102120 has 64 divisors (see below), whose sum is σ = 29813696090640. Its totient is φ = 4326704179200.

The previous prime is 12011111102101. The next prime is 12011111102183. The reversal of 12011111102120 is 2120111111021.

It can be written as a sum of positive squares in 8 ways, for example, as 3248552035876 + 8762559066244 = 1802374^2 + 2960162^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12011111102095 and 12011111102104.

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, 281665151 + ... + 281707790.

Almost surely, 2^{12011111102120} is an apocalyptic number.

12011111102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011111102120 is an abundant number, since it is smaller than the sum of its proper divisors (17802584988520).

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

12011111102120 is a wasteful number, since it uses less digits than its factorization.

12011111102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563373006 (or 563373002 counting only the distinct ones).

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

Adding to 12011111102120 its reverse (2120111111021), we get a palindrome (14131222213141).

The spelling of 12011111102120 in words is "twelve trillion, eleven billion, one hundred eleven million, one hundred two thousand, one hundred twenty".