12222220469 has 4 divisors (see below), whose sum is σ = 12249441900. Its totient is φ = 12194999040.

The previous prime is 12222220463. The next prime is 12222220477. The reversal of 12222220469 is 96402222221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96402222221 = 164621 ⋅585601.

It can be written as a sum of positive squares in 2 ways, for example, as 9377598244 + 2844622225 = 96838^2 + 53335^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222220469 - 2¹⁶ = 12222154933 is a prime.

It is a super-2 number, since 2×12222220469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222220463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13610042 + ... + 13610939.

It is an arithmetic number, because the mean of its divisors is an integer number (3062360475).

Almost surely, 2^12222220469 is an apocalyptic number.

It is an amenable number.

12222220469 is a deficient number, since it is larger than the sum of its proper divisors (27221431).

12222220469 is an equidigital number, since it uses as much as digits as its factorization.

12222220469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27221430.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 12222220469 in words is "twelve billion, two hundred twenty-two million, two hundred twenty thousand, four hundred sixty-nine".