2201012221217 has 2 divisors, whose sum is σ = 2201012221218. Its totient is φ = 2201012221216.

The previous prime is 2201012221211. The next prime is 2201012221231. The reversal of 2201012221217 is 7121222101022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1938134524561 + 262877696656 = 1392169^2 + 512716^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201012221217 - 2⁴ = 2201012221201 is a prime.

It is a super-2 number, since 2×2201012221217² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2201012221192 and 2201012221201.

It is not a weakly prime, because it can be changed into another prime (2201012221211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100506110608 + 1100506110609.

It is an arithmetic number, because the mean of its divisors is an integer number (1100506110609).

Almost surely, 2^{2201012221217} is an apocalyptic number.

It is an amenable number.

2201012221217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201012221217 is an equidigital number, since it uses as much as digits as its factorization.

2201012221217 is an evil number, because the sum of its binary digits is even.

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

Adding to 2201012221217 its reverse (7121222101022), we get a palindrome (9322234322239).

The spelling of 2201012221217 in words is "two trillion, two hundred one billion, twelve million, two hundred twenty-one thousand, two hundred seventeen".