12012222010 has 16 divisors (see below), whose sum is σ = 21624012072. Its totient is φ = 4804441600.

The previous prime is 12012221987. The next prime is 12012222011. The reversal of 12012222010 is 1022221021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7858290609 + 4153931401 = 88647^2 + 64451^2 .

It is not an unprimeable number, because it can be changed into a prime (12012222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70530 + ... + 170290.

Almost surely, 2^12012222010 is an apocalyptic number.

12012222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012222010 is a deficient number, since it is larger than the sum of its proper divisors (9611790062).

12012222010 is a wasteful number, since it uses less digits than its factorization.

12012222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111809.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12012222010 its reverse (1022221021), we get a palindrome (13034443031).

The spelling of 12012222010 in words is "twelve billion, twelve million, two hundred twenty-two thousand, ten".