1121722051217 has 8 divisors (see below), whose sum is σ = 1135006279200. Its totient is φ = 1108452948064.

The previous prime is 1121722051211. The next prime is 1121722051249. The reversal of 1121722051217 is 7121502271211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121722051217 - 2²⁸ = 1121453615761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121722051211) 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, 3631967 + ... + 3928692.

It is an arithmetic number, because the mean of its divisors is an integer number (141875784900).

Almost surely, 2^{1121722051217} is an apocalyptic number.

It is an amenable number.

1121722051217 is a deficient number, since it is larger than the sum of its proper divisors (13284227983).

1121722051217 is an equidigital number, since it uses as much as digits as its factorization.

1121722051217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7562415.

The product of its (nonzero) digits is 3920, while the sum is 32.

The spelling of 1121722051217 in words is "one trillion, one hundred twenty-one billion, seven hundred twenty-two million, fifty-one thousand, two hundred seventeen".