2217121101075 has 48 divisors (see below), whose sum is σ = 3675980809472. Its totient is φ = 1179133200000.

The previous prime is 2217121101071. The next prime is 2217121101103. The reversal of 2217121101075 is 5701011217122.

It is not a de Polignac number, because 2217121101075 - 2² = 2217121101071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2217121101071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42618330 + ... + 42670320.

Almost surely, 2^{2217121101075} is an apocalyptic number.

2217121101075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2217121101075 is a deficient number, since it is larger than the sum of its proper divisors (1458859708397).

2217121101075 is a wasteful number, since it uses less digits than its factorization.

2217121101075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53596 (or 53591 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 30.

Adding to 2217121101075 its reverse (5701011217122), we get a palindrome (7918132318197).

The spelling of 2217121101075 in words is "two trillion, two hundred seventeen billion, one hundred twenty-one million, one hundred one thousand, seventy-five".