12012220010 has 16 divisors (see below), whose sum is σ = 24710852736. Its totient is φ = 4118475408.

The previous prime is 12012220001. The next prime is 12012220049. The reversal of 12012220010 is 1002221021.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12012219973 and 12012220000.

It is an unprimeable number.

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, 85801502 + ... + 85801641.

It is an arithmetic number, because the mean of its divisors is an integer number (1544428296).

Almost surely, 2^12012220010 is an apocalyptic number.

12012220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012220010 is an abundant number, since it is smaller than the sum of its proper divisors (12698632726).

12012220010 is a wasteful number, since it uses less digits than its factorization.

12012220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171603157.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12012220010 its reverse (1002221021), we get a palindrome (13014441031).

The spelling of 12012220010 in words is "twelve billion, twelve million, two hundred twenty thousand, ten".