1222171753 has 12 divisors (see below), whose sum is σ = 1379691460. Its totient is φ = 1081032480.

The previous prime is 1222171739. The next prime is 1222171759. The reversal of 1222171753 is 3571712221.

It can be written as a sum of positive squares in 2 ways, for example, as 497646864 + 724524889 = 22308^2 + 26917^2 .

It is not a de Polignac number, because 1222171753 - 2⁵ = 1222171721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222171759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132018 + ... + 140971.

Almost surely, 2^1222171753 is an apocalyptic number.

It is an amenable number.

1222171753 is a deficient number, since it is larger than the sum of its proper divisors (157519707).

1222171753 is a wasteful number, since it uses less digits than its factorization.

1222171753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273048 (or 273037 counting only the distinct ones).

The product of its digits is 5880, while the sum is 31.

The square root of 1222171753 is about 34959.5731238240. The cubic root of 1222171753 is about 1069.1633932721.

Adding to 1222171753 its reverse (3571712221), we get a palindrome (4793883974).

The spelling of 1222171753 in words is "one billion, two hundred twenty-two million, one hundred seventy-one thousand, seven hundred fifty-three".