12000221269 has 2 divisors, whose sum is σ = 12000221270. Its totient is φ = 12000221268.

The previous prime is 12000221263. The next prime is 12000221329. The reversal of 12000221269 is 96212200021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12000107025 + 114244 = 109545^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000221269 - 2¹⁷ = 12000090197 is a prime.

It is a super-2 number, since 2×12000221269² (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 (12000221263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000110634 + 6000110635.

It is an arithmetic number, because the mean of its divisors is an integer number (6000110635).

Almost surely, 2^12000221269 is an apocalyptic number.

It is an amenable number.

12000221269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000221269 is an equidigital number, since it uses as much as digits as its factorization.

12000221269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 12000221269 in words is "twelve billion, two hundred twenty-one thousand, two hundred sixty-nine".