1121722053218 has 16 divisors (see below), whose sum is σ = 1837533854016. Its totient is φ = 510426068880.

The previous prime is 1121722053217. The next prime is 1121722053227. The reversal of 1121722053218 is 8123502271211.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121722053217) 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, 303823196 + ... + 303826887.

It is an arithmetic number, because the mean of its divisors is an integer number (114845865876).

Almost surely, 2^{1121722053218} is an apocalyptic number.

1121722053218 is a deficient number, since it is larger than the sum of its proper divisors (715811800798).

1121722053218 is a wasteful number, since it uses less digits than its factorization.

1121722053218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607650169.

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 1121722053218 in words is "one trillion, one hundred twenty-one billion, seven hundred twenty-two million, fifty-three thousand, two hundred eighteen".