12210102012 has 48 divisors (see below), whose sum is σ = 30069065600. Its totient is φ = 3845620800.

The previous prime is 12210102011. The next prime is 12210102059. The reversal of 12210102012 is 21020101221.

It is a super-2 number, since 2×12210102012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210102011) by changing a digit.

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, 15762 + ... + 157062.

Almost surely, 2^12210102012 is an apocalyptic number.

12210102012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210102012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15034532800).

12210102012 is an abundant number, since it is smaller than the sum of its proper divisors (17858963588).

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

12210102012 is a wasteful number, since it uses less digits than its factorization.

12210102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141706 (or 141704 counting only the distinct ones).

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

Adding to 12210102012 its reverse (21020101221), we get a palindrome (33230203233).

The spelling of 12210102012 in words is "twelve billion, two hundred ten million, one hundred two thousand, twelve".