2221012002217 has 2 divisors, whose sum is σ = 2221012002218. Its totient is φ = 2221012002216.

The previous prime is 2221012002199. The next prime is 2221012002227. The reversal of 2221012002217 is 7122002101222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1448891282601 + 772120719616 = 1203699^2 + 878704^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221012002217 - 2¹¹ = 2221012000169 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221012002227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110506001108 + 1110506001109.

It is an arithmetic number, because the mean of its divisors is an integer number (1110506001109).

Almost surely, 2^{2221012002217} is an apocalyptic number.

It is an amenable number.

2221012002217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221012002217 is an equidigital number, since it uses as much as digits as its factorization.

2221012002217 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 22.

Adding to 2221012002217 its reverse (7122002101222), we get a palindrome (9343014103439).

The spelling of 2221012002217 in words is "two trillion, two hundred twenty-one billion, twelve million, two thousand, two hundred seventeen".