12121122002 has 24 divisors (see below), whose sum is σ = 20472276636. Its totient is φ = 5375216000.

The previous prime is 12121121993. The next prime is 12121122031. The reversal of 12121122002 is 20022112121.

12121122002 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 2 ways, for example, as 7995757561 + 4125364441 = 89419^2 + 64229^2 .

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 11 ways as a sum of consecutive naturals, for example, 600899 + ... + 620742.

Almost surely, 2^12121122002 is an apocalyptic number.

12121122002 is a deficient number, since it is larger than the sum of its proper divisors (8351154634).

12121122002 is a wasteful number, since it uses less digits than its factorization.

12121122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221706 (or 1221695 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12121122002 its reverse (20022112121), we get a palindrome (32143234123).

The spelling of 12121122002 in words is "twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, two".