12123120221002 has 32 divisors (see below), whose sum is σ = 20830040106624. Its totient is φ = 5183743219200.

The previous prime is 12123120220957. The next prime is 12123120221021. The reversal of 12123120221002 is 20012202132121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19615618 + ... + 20224210.

It is an arithmetic number, because the mean of its divisors is an integer number (650938753332).

Almost surely, 2^{12123120221002} is an apocalyptic number.

12123120221002 is a deficient number, since it is larger than the sum of its proper divisors (8706919885622).

12123120221002 is a wasteful number, since it uses less digits than its factorization.

12123120221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611854.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12123120221002 its reverse (20012202132121), we get a palindrome (32135322353123).

The spelling of 12123120221002 in words is "twelve trillion, one hundred twenty-three billion, one hundred twenty million, two hundred twenty-one thousand, two".