222012012109 has 2 divisors, whose sum is σ = 222012012110. Its totient is φ = 222012012108.

The previous prime is 222012012097. The next prime is 222012012133. The reversal of 222012012109 is 901210210222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205526222500 + 16485789609 = 453350^2 + 128397^2 .

It is a cyclic number.

It is not a de Polignac number, because 222012012109 - 2¹⁷ = 222011881037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222012012109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222012015109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111006006054 + 111006006055.

It is an arithmetic number, because the mean of its divisors is an integer number (111006006055).

Almost surely, 2^222012012109 is an apocalyptic number.

It is an amenable number.

222012012109 is a deficient number, since it is larger than the sum of its proper divisors (1).

222012012109 is an equidigital number, since it uses as much as digits as its factorization.

222012012109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 222012012109 in words is "two hundred twenty-two billion, twelve million, twelve thousand, one hundred nine".