222011212169 has 2 divisors, whose sum is σ = 222011212170. Its totient is φ = 222011212168.

The previous prime is 222011212153. The next prime is 222011212231. The reversal of 222011212169 is 961212110222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152927923600 + 69083288569 = 391060^2 + 262837^2 .

It is a cyclic number.

It is not a de Polignac number, because 222011212169 - 2⁴ = 222011212153 is a prime.

It is a super-2 number, since 2×222011212169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222011212469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111005606084 + 111005606085.

It is an arithmetic number, because the mean of its divisors is an integer number (111005606085).

Almost surely, 2^222011212169 is an apocalyptic number.

It is an amenable number.

222011212169 is a deficient number, since it is larger than the sum of its proper divisors (1).

222011212169 is an equidigital number, since it uses as much as digits as its factorization.

222011212169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 222011212169 in words is "two hundred twenty-two billion, eleven million, two hundred twelve thousand, one hundred sixty-nine".