12120232210 has 16 divisors (see below), whose sum is σ = 21819865176. Its totient is φ = 4847326848.

The previous prime is 12120232177. The next prime is 12120232217. The reversal of 12120232210 is 1223202121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11125397529 + 994834681 = 105477^2 + 31541^2 .

It is not an unprimeable number, because it can be changed into a prime (12120232217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26949 + ... + 158008.

Almost surely, 2^12120232210 is an apocalyptic number.

12120232210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120232210 is a deficient number, since it is larger than the sum of its proper divisors (9699632966).

12120232210 is a wasteful number, since it uses less digits than its factorization.

12120232210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191517.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12120232210 its reverse (1223202121), we get a palindrome (13343434331).

The spelling of 12120232210 in words is "twelve billion, one hundred twenty million, two hundred thirty-two thousand, two hundred ten".