222202122209 has 2 divisors, whose sum is σ = 222202122210. Its totient is φ = 222202122208.

The previous prime is 222202122199. The next prime is 222202122277. The reversal of 222202122209 is 902221202222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218444064400 + 3758057809 = 467380^2 + 61303^2 .

It is a cyclic number.

It is not a de Polignac number, because 222202122209 - 2¹² = 222202118113 is a prime.

It is a super-2 number, since 2×222202122209² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222202422209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111101061104 + 111101061105.

It is an arithmetic number, because the mean of its divisors is an integer number (111101061105).

Almost surely, 2^222202122209 is an apocalyptic number.

It is an amenable number.

222202122209 is a deficient number, since it is larger than the sum of its proper divisors (1).

222202122209 is an equidigital number, since it uses as much as digits as its factorization.

222202122209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 222202122209 in words is "two hundred twenty-two billion, two hundred two million, one hundred twenty-two thousand, two hundred nine".