1121101120972 has 24 divisors (see below), whose sum is σ = 2242457328384. Its totient is φ = 480417247632.

The previous prime is 1121101120969. The next prime is 1121101120973. The reversal of 1121101120972 is 2790211011211.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1121101120972.

It is not an unprimeable number, because it can be changed into a prime (1121101120973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2026558 + ... + 2519749.

It is an arithmetic number, because the mean of its divisors is an integer number (93435722016).

Almost surely, 2^{1121101120972} is an apocalyptic number.

It is an amenable number.

1121101120972 is an abundant number, since it is smaller than the sum of its proper divisors (1121356207412).

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

1121101120972 is a wasteful number, since it uses less digits than its factorization.

1121101120972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555125 (or 4555123 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 28.

The spelling of 1121101120972 in words is "one trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty thousand, nine hundred seventy-two".