12210125155 has 16 divisors (see below), whose sum is σ = 15208397568. Its totient is φ = 9400752000.

The previous prime is 12210125149. The next prime is 12210125177. The reversal of 12210125155 is 55152101221.

It is a happy number.

It is not a de Polignac number, because 12210125155 - 2¹⁹ = 12209600867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189556 + ... + 245665.

It is an arithmetic number, because the mean of its divisors is an integer number (950524848).

Almost surely, 2^12210125155 is an apocalyptic number.

12210125155 is a deficient number, since it is larger than the sum of its proper divisors (2998272413).

12210125155 is a wasteful number, since it uses less digits than its factorization.

12210125155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435438.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 12210125155 its reverse (55152101221), we get a palindrome (67362226376).

The spelling of 12210125155 in words is "twelve billion, two hundred ten million, one hundred twenty-five thousand, one hundred fifty-five".