12013121210 has 32 divisors (see below), whose sum is σ = 21879622800. Its totient is φ = 4748423680.

The previous prime is 12013121207. The next prime is 12013121231. The reversal of 12013121210 is 1212131021.

12013121210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 13890529 + 11999230681 = 3727^2 + 109541^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2116256 + ... + 2121924.

Almost surely, 2^12013121210 is an apocalyptic number.

12013121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12013121210 is a deficient number, since it is larger than the sum of its proper divisors (9866501590).

12013121210 is a wasteful number, since it uses less digits than its factorization.

12013121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8146.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12013121210 its reverse (1212131021), we get a palindrome (13225252231).

The spelling of 12013121210 in words is "twelve billion, thirteen million, one hundred twenty-one thousand, two hundred ten".