12222121069 has 2 divisors, whose sum is σ = 12222121070. Its totient is φ = 12222121068.

The previous prime is 12222121031. The next prime is 12222121073. The reversal of 12222121069 is 96012122221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11847234025 + 374887044 = 108845^2 + 19362^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222121069 - 2¹⁹ = 12221596781 is a prime.

It is a super-2 number, since 2×12222121069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222121169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111060534 + 6111060535.

It is an arithmetic number, because the mean of its divisors is an integer number (6111060535).

Almost surely, 2^12222121069 is an apocalyptic number.

It is an amenable number.

12222121069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222121069 is an equidigital number, since it uses as much as digits as its factorization.

12222121069 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 28.

The spelling of 12222121069 in words is "twelve billion, two hundred twenty-two million, one hundred twenty-one thousand, sixty-nine".