12330220155 has 16 divisors (see below), whose sum is σ = 21521839104. Its totient is φ = 5978288480.

The previous prime is 12330220151. The next prime is 12330220171. The reversal of 12330220155 is 55102203321.

It is a happy number.

It is not a de Polignac number, because 12330220155 - 2² = 12330220151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12330220151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37364139 + ... + 37364468.

It is an arithmetic number, because the mean of its divisors is an integer number (1345114944).

Almost surely, 2^12330220155 is an apocalyptic number.

12330220155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12330220155 is a deficient number, since it is larger than the sum of its proper divisors (9191618949).

12330220155 is a wasteful number, since it uses less digits than its factorization.

12330220155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74728626.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 12330220155 its reverse (55102203321), we get a palindrome (67432423476).

The spelling of 12330220155 in words is "twelve billion, three hundred thirty million, two hundred twenty thousand, one hundred fifty-five".