12102222121212 has 24 divisors (see below), whose sum is σ = 28338301040896. Its totient is φ = 4019819360688.

The previous prime is 12102222121207. The next prime is 12102222121217. The reversal of 12102222121212 is 21212122220121.

It is an interprime number because it is at equal distance from previous prime (12102222121207) and next prime (12102222121217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102222121217) 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 7 ways as a sum of consecutive naturals, for example, 1781831428 + ... + 1781838219.

Almost surely, 2^{12102222121212} is an apocalyptic number.

12102222121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102222121212 is an abundant number, since it is smaller than the sum of its proper divisors (16236078919684).

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

12102222121212 is a wasteful number, since it uses less digits than its factorization.

12102222121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563669937 (or 3563669935 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12102222121212 its reverse (21212122220121), we get a palindrome (33314344341333).

The spelling of 12102222121212 in words is "twelve trillion, one hundred two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twelve".