12155223322 has 8 divisors (see below), whose sum is σ = 19890365472. Its totient is φ = 5525101500.

The previous prime is 12155223319. The next prime is 12155223371. The reversal of 12155223322 is 22332255121.

12155223322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276255054 + ... + 276255097.

It is an arithmetic number, because the mean of its divisors is an integer number (2486295684).

Almost surely, 2^12155223322 is an apocalyptic number.

12155223322 is a deficient number, since it is larger than the sum of its proper divisors (7735142150).

12155223322 is a wasteful number, since it uses less digits than its factorization.

12155223322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552510164.

The product of its digits is 7200, while the sum is 28.

Adding to 12155223322 its reverse (22332255121), we get a palindrome (34487478443).

The spelling of 12155223322 in words is "twelve billion, one hundred fifty-five million, two hundred twenty-three thousand, three hundred twenty-two".