12155014222 has 16 divisors (see below), whose sum is σ = 19642180320. Its totient is φ = 5607961632.

The previous prime is 12155014199. The next prime is 12155014231. The reversal of 12155014222 is 22241055121.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11298 + ... + 156325.

It is an arithmetic number, because the mean of its divisors is an integer number (1227636270).

Almost surely, 2^12155014222 is an apocalyptic number.

12155014222 is a deficient number, since it is larger than the sum of its proper divisors (7487166098).

12155014222 is a wasteful number, since it uses less digits than its factorization.

12155014222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170427.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 12155014222 its reverse (22241055121), we get a palindrome (34396069343).

The spelling of 12155014222 in words is "twelve billion, one hundred fifty-five million, fourteen thousand, two hundred twenty-two".