1222743734017 has 16 divisors (see below), whose sum is σ = 1406598434640. Its totient is φ = 1052892352512.

The previous prime is 1222743733993. The next prime is 1222743734021. The reversal of 1222743734017 is 7104373472221.

It can be written as a sum of positive squares in 8 ways, for example, as 78220343041 + 1144523390976 = 279679^2 + 1069824^2 .

It is not a de Polignac number, because 1222743734017 - 2¹⁹ = 1222743209729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222743734057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24456342 + ... + 24506287.

It is an arithmetic number, because the mean of its divisors is an integer number (87912402165).

Almost surely, 2^{1222743734017} is an apocalyptic number.

1222743734017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1222743734017 is a deficient number, since it is larger than the sum of its proper divisors (183854700623).

1222743734017 is a wasteful number, since it uses less digits than its factorization.

1222743734017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48962772.

The product of its (nonzero) digits is 395136, while the sum is 43.

The spelling of 1222743734017 in words is "one trillion, two hundred twenty-two billion, seven hundred forty-three million, seven hundred thirty-four thousand, seventeen".