12019442227 has 4 divisors (see below), whose sum is σ = 12944014720. Its totient is φ = 11094869736.

The previous prime is 12019442219. The next prime is 12019442243. The reversal of 12019442227 is 72224491021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72224491021 = 31 ⋅2329822291.

It is a cyclic number.

It is not a de Polignac number, because 12019442227 - 2³ = 12019442219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12019442192 and 12019442201.

It is not an unprimeable number, because it can be changed into a prime (12019442927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462286227 + ... + 462286252.

It is an arithmetic number, because the mean of its divisors is an integer number (3236003680).

Almost surely, 2^12019442227 is an apocalyptic number.

12019442227 is a deficient number, since it is larger than the sum of its proper divisors (924572493).

12019442227 is an equidigital number, since it uses as much as digits as its factorization.

12019442227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924572492.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 12019442227 in words is "twelve billion, nineteen million, four hundred forty-two thousand, two hundred twenty-seven".