12121122221002 has 8 divisors (see below), whose sum is σ = 18320474807712. Its totient is φ = 6014297285100.

The previous prime is 12121122220993. The next prime is 12121122221017. The reversal of 12121122221002 is 20012222112121.

12121122221002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 23131912374 + ... + 23131912897.

It is an arithmetic number, because the mean of its divisors is an integer number (2290059350964).

Almost surely, 2^{12121122221002} is an apocalyptic number.

12121122221002 is a deficient number, since it is larger than the sum of its proper divisors (6199352586710).

12121122221002 is a wasteful number, since it uses less digits than its factorization.

12121122221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46263825404.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12121122221002 its reverse (20012222112121), we get a palindrome (32133344333123).

The spelling of 12121122221002 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, two".