22200121120217 has 2 divisors, whose sum is σ = 22200121120218. Its totient is φ = 22200121120216.

The previous prime is 22200121120183. The next prime is 22200121120283. The reversal of 22200121120217 is 71202112100222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21949496730841 + 250624389376 = 4685029^2 + 500624^2 .

It is a cyclic number.

It is not a de Polignac number, because 22200121120217 - 2⁸ = 22200121119961 is a prime.

It is a super-2 number, since 2×22200121120217² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22200121120192 and 22200121120201.

It is not a weakly prime, because it can be changed into another prime (22200121120297) 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 as a sum of consecutive naturals, namely, 11100060560108 + 11100060560109.

It is an arithmetic number, because the mean of its divisors is an integer number (11100060560109).

Almost surely, 2^{22200121120217} is an apocalyptic number.

It is an amenable number.

22200121120217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22200121120217 is an equidigital number, since it uses as much as digits as its factorization.

22200121120217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 22200121120217 its reverse (71202112100222), we get a palindrome (93402233220439).

The spelling of 22200121120217 in words is "twenty-two trillion, two hundred billion, one hundred twenty-one million, one hundred twenty thousand, two hundred seventeen".