12030155227 has 2 divisors, whose sum is σ = 12030155228. Its totient is φ = 12030155226.

The previous prime is 12030155219. The next prime is 12030155251. The reversal of 12030155227 is 72255103021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12030155227 - 2³ = 12030155219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12030155195 and 12030155204.

It is not a weakly prime, because it can be changed into another prime (12030155257) 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, 6015077613 + 6015077614.

It is an arithmetic number, because the mean of its divisors is an integer number (6015077614).

Almost surely, 2^12030155227 is an apocalyptic number.

12030155227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12030155227 is an equidigital number, since it uses as much as digits as its factorization.

12030155227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

Adding to 12030155227 its reverse (72255103021), we get a palindrome (84285258248).

It can be divided in two parts, 120301 and 55227, that added together give a triangular number (175528 = T₅₉₂).

The spelling of 12030155227 in words is "twelve billion, thirty million, one hundred fifty-five thousand, two hundred twenty-seven".