12121010002 has 32 divisors (see below), whose sum is σ = 18767548800. Its totient is φ = 5868910080.

The previous prime is 12121009993. The next prime is 12121010003. The reversal of 12121010002 is 20001012121.

It is not an unprimeable number, because it can be changed into a prime (12121010003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2352393 + ... + 2357539.

It is an arithmetic number, because the mean of its divisors is an integer number (586485900).

Almost surely, 2^12121010002 is an apocalyptic number.

12121010002 is a deficient number, since it is larger than the sum of its proper divisors (6646538798).

12121010002 is a wasteful number, since it uses less digits than its factorization.

12121010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12121010002 its reverse (20001012121), we get a palindrome (32122022123).

The spelling of 12121010002 in words is "twelve billion, one hundred twenty-one million, ten thousand, two".