12000121010 has 8 divisors (see below), whose sum is σ = 21600217836. Its totient is φ = 4800048400.

The previous prime is 12000120931. The next prime is 12000121031. The reversal of 12000121010 is 1012100021.

It can be written as a sum of positive squares in 2 ways, for example, as 10328047129 + 1672073881 = 101627^2 + 40891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600006041 + ... + 600006060.

Almost surely, 2^12000121010 is an apocalyptic number.

12000121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12000121010 is a deficient number, since it is larger than the sum of its proper divisors (9600096826).

12000121010 is a wasteful number, since it uses less digits than its factorization.

12000121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200012108.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12000121010 its reverse (1012100021), we get a palindrome (13012221031).

The spelling of 12000121010 in words is "twelve billion, one hundred twenty-one thousand, ten".