12121220112002 has 16 divisors (see below), whose sum is σ = 18919996714080. Its totient is φ = 5819332317792.

The previous prime is 12121220111993. The next prime is 12121220112031. The reversal of 12121220112002 is 20021102212121.

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 7 ways as a sum of consecutive naturals, for example, 1194439163 + ... + 1194449310.

It is an arithmetic number, because the mean of its divisors is an integer number (1182499794630).

Almost surely, 2^{12121220112002} is an apocalyptic number.

12121220112002 is a deficient number, since it is larger than the sum of its proper divisors (6798776602078).

12121220112002 is a wasteful number, since it uses less digits than its factorization.

12121220112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388888577.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12121220112002 its reverse (20021102212121), we get a palindrome (32142322324123).

The spelling of 12121220112002 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twelve thousand, two".