22212210201217 has 2 divisors, whose sum is σ = 22212210201218. Its totient is φ = 22212210201216.

The previous prime is 22212210201193. The next prime is 22212210201277. The reversal of 22212210201217 is 71210201221222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15189095387761 + 7023114813456 = 3897319^2 + 2650116^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212210201217 - 2³¹ = 22210062717569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22212210201191 and 22212210201200.

It is not a weakly prime, because it can be changed into another prime (22212210201277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106105100608 + 11106105100609.

It is an arithmetic number, because the mean of its divisors is an integer number (11106105100609).

Almost surely, 2^{22212210201217} is an apocalyptic number.

It is an amenable number.

22212210201217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212210201217 is an equidigital number, since it uses as much as digits as its factorization.

22212210201217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 22212210201217 its reverse (71210201221222), we get a palindrome (93422411422439).

The spelling of 22212210201217 in words is "twenty-two trillion, two hundred twelve billion, two hundred ten million, two hundred one thousand, two hundred seventeen".