12011122219 has 2 divisors, whose sum is σ = 12011122220. Its totient is φ = 12011122218.

The previous prime is 12011122199. The next prime is 12011122309. The reversal of 12011122219 is 91222111021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011122219 - 2¹¹ = 12011120171 is a prime.

It is a super-2 number, since 2×12011122219² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12011122219.

It is not a weakly prime, because it can be changed into another prime (12011422219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005561109 + 6005561110.

It is an arithmetic number, because the mean of its divisors is an integer number (6005561110).

Almost surely, 2^12011122219 is an apocalyptic number.

12011122219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011122219 is an equidigital number, since it uses as much as digits as its factorization.

12011122219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 12011122219 in words is "twelve billion, eleven million, one hundred twenty-two thousand, two hundred nineteen".