12120224310 has 144 divisors (see below), whose sum is σ = 32861737584. Its totient is φ = 3097087488.

The previous prime is 12120224309. The next prime is 12120224323. The reversal of 12120224310 is 1342202121.

It is a happy number.

12120224310 is a `hidden beast` number, since 1 + 212 + 0 + 22 + 431 + 0 = 666.

It is a super-2 number, since 2×12120224310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 71 ways as a sum of consecutive naturals, for example, 17745229 + ... + 17745911.

It is an arithmetic number, because the mean of its divisors is an integer number (228206511).

Almost surely, 2^12120224310 is an apocalyptic number.

12120224310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12120224310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16430868792).

12120224310 is an abundant number, since it is smaller than the sum of its proper divisors (20741513274).

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

12120224310 is a wasteful number, since it uses less digits than its factorization.

12120224310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12120224310 its reverse (1342202121), we get a palindrome (13462426431).

The spelling of 12120224310 in words is "twelve billion, one hundred twenty million, two hundred twenty-four thousand, three hundred ten".