1217330501050 has 24 divisors (see below), whose sum is σ = 2266966093500. Its totient is φ = 486344810880.

The previous prime is 1217330501039. The next prime is 1217330501053. The reversal of 1217330501050 is 501050337121.

It can be written as a sum of positive squares in 6 ways, for example, as 429356494009 + 787974007041 = 655253^2 + 887679^2 .

It is a super-2 number, since 2×1217330501050² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1217330501053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14642875 + ... + 14725774.

Almost surely, 2^{1217330501050} is an apocalyptic number.

1217330501050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1217330501050 is a deficient number, since it is larger than the sum of its proper divisors (1049635592450).

1217330501050 is a wasteful number, since it uses less digits than its factorization.

1217330501050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29369490 (or 29369485 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

Adding to 1217330501050 its reverse (501050337121), we get a palindrome (1718380838171).

The spelling of 1217330501050 in words is "one trillion, two hundred seventeen billion, three hundred thirty million, five hundred one thousand, fifty".