1121100120120 has 128 divisors (see below), whose sum is σ = 3564077760000. Its totient is φ = 281324367360.

The previous prime is 1121100120083. The next prime is 1121100120121. The reversal of 1121100120120 is 210210011211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1121100120096 and 1121100120105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121100120121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1310316 + ... + 1989755.

It is an arithmetic number, because the mean of its divisors is an integer number (27844357500).

Almost surely, 2^{1121100120120} is an apocalyptic number.

1121100120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121100120120 is an abundant number, since it is smaller than the sum of its proper divisors (2442977639880).

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

1121100120120 is a wasteful number, since it uses less digits than its factorization.

1121100120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300253 (or 3300249 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1121100120120 its reverse (210210011211), we get a palindrome (1331310131331).

The spelling of 1121100120120 in words is "one trillion, one hundred twenty-one billion, one hundred million, one hundred twenty thousand, one hundred twenty".