1121111212120 has 32 divisors (see below), whose sum is σ = 2670882595200. Its totient is φ = 422065397248.

The previous prime is 1121111212099. The next prime is 1121111212201. The reversal of 1121111212120 is 212121111211.

It is a junction number, because it is equal to n+sod(n) for n = 1121111212094 and 1121111212103.

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, 824345800 + ... + 824347159.

It is an arithmetic number, because the mean of its divisors is an integer number (83465081100).

Almost surely, 2^{1121111212120} is an apocalyptic number.

1121111212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121111212120 is an abundant number, since it is smaller than the sum of its proper divisors (1549771383080).

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

1121111212120 is a wasteful number, since it uses less digits than its factorization.

1121111212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648692987 (or 1648692983 counting only the distinct ones).

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

Adding to 1121111212120 its reverse (212121111211), we get a palindrome (1333232323331).

It can be divided in two parts, 112111 and 1212120, that added together give a palindrome (1324231).

The spelling of 1121111212120 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twelve thousand, one hundred twenty".