222201121102217 has 2 divisors, whose sum is σ = 222201121102218. Its totient is φ = 222201121102216.

The previous prime is 222201121102133. The next prime is 222201121102249. The reversal of 222201121102217 is 712201121102222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180000298783561 + 42200822318656 = 13416419^2 + 6496216^2 .

It is a cyclic number.

It is not a de Polignac number, because 222201121102217 - 2⁸ = 222201121101961 is a prime.

It is a super-3 number, since 3×222201121102217³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (222201121102267) 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, 111100560551108 + 111100560551109.

It is an arithmetic number, because the mean of its divisors is an integer number (111100560551109).

Almost surely, 2^{222201121102217} is an apocalyptic number.

It is an amenable number.

222201121102217 is a deficient number, since it is larger than the sum of its proper divisors (1).

222201121102217 is an equidigital number, since it uses as much as digits as its factorization.

222201121102217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 222201121102217 its reverse (712201121102222), we get a palindrome (934402242204439).

The spelling of 222201121102217 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred twenty-one million, one hundred two thousand, two hundred seventeen".