12171120510 has 32 divisors (see below), whose sum is σ = 30748095360. Its totient is φ = 3074809248.

The previous prime is 12171120463. The next prime is 12171120551. The reversal of 12171120510 is 1502117121.

It is a congruent 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, 10675852 + ... + 10676991.

It is an arithmetic number, because the mean of its divisors is an integer number (960877980).

Almost surely, 2^12171120510 is an apocalyptic number.

12171120510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12171120510 is an abundant number, since it is smaller than the sum of its proper divisors (18576974850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12171120510 is a wasteful number, since it uses less digits than its factorization.

12171120510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352872.

The product of its (nonzero) digits is 140, while the sum is 21.

Adding to 12171120510 its reverse (1502117121), we get a palindrome (13673237631).

The spelling of 12171120510 in words is "twelve billion, one hundred seventy-one million, one hundred twenty thousand, five hundred ten".