12101221002 has 32 divisors (see below), whose sum is σ = 26218422720. Its totient is φ = 3723448560.

The previous prime is 12101220953. The next prime is 12101221021. The reversal of 12101221002 is 20012210121.

12101221002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 445824 + ... + 472187.

It is an arithmetic number, because the mean of its divisors is an integer number (819325710).

Almost surely, 2^12101221002 is an apocalyptic number.

12101221002 is an abundant number, since it is smaller than the sum of its proper divisors (14117201718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101221002 is an equidigital number, since it uses as much as digits as its factorization.

12101221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918055 (or 918029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12101221002 its reverse (20012210121), we get a palindrome (32113431123).

The spelling of 12101221002 in words is "twelve billion, one hundred one million, two hundred twenty-one thousand, two".