12171051122 has 32 divisors (see below), whose sum is σ = 20255313600. Its totient is φ = 5461380288.

The previous prime is 12171051119. The next prime is 12171051131. The reversal of 12171051122 is 22115017121.

It is a happy 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, 45788 + ... + 162599.

It is an arithmetic number, because the mean of its divisors is an integer number (632978550).

Almost surely, 2^12171051122 is an apocalyptic number.

12171051122 is a deficient number, since it is larger than the sum of its proper divisors (8084262478).

12171051122 is a wasteful number, since it uses less digits than its factorization.

12171051122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208490.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 12171051122 its reverse (22115017121), we get a palindrome (34286068243).

The spelling of 12171051122 in words is "twelve billion, one hundred seventy-one million, fifty-one thousand, one hundred twenty-two".