12212121212002 has 16 divisors (see below), whose sum is σ = 18332660997720. Its totient is φ = 6101235662848.

The previous prime is 12212121211993. The next prime is 12212121212033. The reversal of 12212121212002 is 20021212121221.

It can be written as a sum of positive squares in 4 ways, for example, as 10123717604841 + 2088403607161 = 3181779^2 + 1445131^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16641378 + ... + 17359714.

Almost surely, 2^{12212121212002} is an apocalyptic number.

12212121212002 is a deficient number, since it is larger than the sum of its proper divisors (6120539785718).

12212121212002 is a wasteful number, since it uses less digits than its factorization.

12212121212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725045.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12212121212002 its reverse (20021212121221), we get a palindrome (32233333333223).

The spelling of 12212121212002 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twelve thousand, two".