12155014223 has 24 divisors (see below), whose sum is σ = 14051899008. Its totient is φ = 10491624000.

The previous prime is 12155014199. The next prime is 12155014231. The reversal of 12155014223 is 32241055121.

It is not a de Polignac number, because 12155014223 - 2¹⁴ = 12154997839 is a prime.

It is a super-2 number, since 2×12155014223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12155014192 and 12155014201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155014243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168233 + ... + 229373.

It is an arithmetic number, because the mean of its divisors is an integer number (585495792).

Almost surely, 2^12155014223 is an apocalyptic number.

12155014223 is a deficient number, since it is larger than the sum of its proper divisors (1896884785).

12155014223 is a wasteful number, since it uses less digits than its factorization.

12155014223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61247 (or 61236 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12155014223 its reverse (32241055121), we get a palindrome (44396069344).

The spelling of 12155014223 in words is "twelve billion, one hundred fifty-five million, fourteen thousand, two hundred twenty-three".