2217051050525 has 12 divisors (see below), whose sum is σ = 2843941348500. Its totient is φ = 1712480810880.

The previous prime is 2217051050519. The next prime is 2217051050527. The reversal of 2217051050525 is 5250501507122.

It can be written as a sum of positive squares in 6 ways, for example, as 114682681 + 2216936367844 = 10709^2 + 1488938^2 .

It is not a de Polignac number, because 2217051050525 - 2¹⁰ = 2217051049501 is a prime.

It is a super-2 number, since 2×2217051050525² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217051050527) 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, 1529000000 + ... + 1529001449.

It is an arithmetic number, because the mean of its divisors is an integer number (236995112375).

Almost surely, 2^{2217051050525} is an apocalyptic number.

2217051050525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2217051050525 is a deficient number, since it is larger than the sum of its proper divisors (626890297975).

2217051050525 is a wasteful number, since it uses less digits than its factorization.

2217051050525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058001488 (or 3058001483 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 35.

Adding to 2217051050525 its reverse (5250501507122), we get a palindrome (7467552557647).

The spelling of 2217051050525 in words is "two trillion, two hundred seventeen billion, fifty-one million, fifty thousand, five hundred twenty-five".