12012102102 has 128 divisors (see below), whose sum is σ = 32738807808. Its totient is φ = 2836944000.

The previous prime is 12012102101. The next prime is 12012102143. The reversal of 12012102102 is 20120121021.

It is a super-4 number, since 4×12012102102⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012102101) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 387477 + ... + 417327.

It is an arithmetic number, because the mean of its divisors is an integer number (255771936).

Almost surely, 2^12012102102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012102102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16369403904).

12012102102 is an abundant number, since it is smaller than the sum of its proper divisors (20726705706).

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

12012102102 is a wasteful number, since it uses less digits than its factorization.

12012102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29954.

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

Adding to 12012102102 its reverse (20120121021), we get a palindrome (32132223123).

The spelling of 12012102102 in words is "twelve billion, twelve million, one hundred two thousand, one hundred two".