12120042010 has 16 divisors (see below), whose sum is σ = 21835626696. Its totient is φ = 4843672128.

The previous prime is 12120041977. The next prime is 12120042037. The reversal of 12120042010 is 1024002121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5791362201 + 6328679809 = 76101^2 + 79553^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531357 + ... + 553696.

Almost surely, 2^12120042010 is an apocalyptic number.

12120042010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120042010 is a deficient number, since it is larger than the sum of its proper divisors (9715584686).

12120042010 is a wasteful number, since it uses less digits than its factorization.

12120042010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086177.

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

Adding to 12120042010 its reverse (1024002121), we get a palindrome (13144044131).

The spelling of 12120042010 in words is "twelve billion, one hundred twenty million, forty-two thousand, ten".