1121550552012 has 48 divisors (see below), whose sum is σ = 2880120200832. Its totient is φ = 336856154880.

The previous prime is 1121550551981. The next prime is 1121550552013. The reversal of 1121550552012 is 2102550551211.

It is not an unprimeable number, because it can be changed into a prime (1121550552013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37580638 + ... + 37610469.

It is an arithmetic number, because the mean of its divisors is an integer number (60002504184).

Almost surely, 2^{1121550552012} is an apocalyptic number.

1121550552012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121550552012 is an abundant number, since it is smaller than the sum of its proper divisors (1758569648820).

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

1121550552012 is a wasteful number, since it uses less digits than its factorization.

1121550552012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75191238 (or 75191236 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 30.

The spelling of 1121550552012 in words is "one trillion, one hundred twenty-one billion, five hundred fifty million, five hundred fifty-two thousand, twelve".