12012221102 has 32 divisors (see below), whose sum is σ = 21027079872. Its totient is φ = 5040451584.

The previous prime is 12012221071. The next prime is 12012221119. The reversal of 12012221102 is 20112221021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97118 + ... + 182910.

It is an arithmetic number, because the mean of its divisors is an integer number (657096246).

Almost surely, 2^12012221102 is an apocalyptic number.

12012221102 is a deficient number, since it is larger than the sum of its proper divisors (9014858770).

12012221102 is a wasteful number, since it uses less digits than its factorization.

12012221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86012.

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

Adding to 12012221102 its reverse (20112221021), we get a palindrome (32124442123).

The spelling of 12012221102 in words is "twelve billion, twelve million, two hundred twenty-one thousand, one hundred two".