222200121217 has 2 divisors, whose sum is σ = 222200121218. Its totient is φ = 222200121216.

The previous prime is 222200121167. The next prime is 222200121223. The reversal of 222200121217 is 712121002222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150667409281 + 71532711936 = 388159^2 + 267456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222200121217 is a prime.

It is a super-2 number, since 2×222200121217² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222200121287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100060608 + 111100060609.

It is an arithmetic number, because the mean of its divisors is an integer number (111100060609).

Almost surely, 2^222200121217 is an apocalyptic number.

It is an amenable number.

222200121217 is a deficient number, since it is larger than the sum of its proper divisors (1).

222200121217 is an equidigital number, since it uses as much as digits as its factorization.

222200121217 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 222200121217 its reverse (712121002222), we get a palindrome (934321123439).

The spelling of 222200121217 in words is "two hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, two hundred seventeen".