1121102002120 has 16 divisors (see below), whose sum is σ = 2522479504860. Its totient is φ = 448440800832.

The previous prime is 1121102002117. The next prime is 1121102002133. The reversal of 1121102002120 is 212002011211.

It can be written as a sum of positive squares in 2 ways, for example, as 1093241718724 + 27860283396 = 1045582^2 + 166914^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1121102002120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14013774987 + ... + 14013775066.

Almost surely, 2^{1121102002120} is an apocalyptic number.

1121102002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121102002120 is an abundant number, since it is smaller than the sum of its proper divisors (1401377502740).

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

1121102002120 is a wasteful number, since it uses less digits than its factorization.

1121102002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28027550064 (or 28027550060 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1121102002120 its reverse (212002011211), we get a palindrome (1333104013331).

Subtracting from 1121102002120 its reverse (212002011211), we obtain a palindrome (909099990909).

The spelling of 1121102002120 in words is "one trillion, one hundred twenty-one billion, one hundred two million, two thousand, one hundred twenty".