12221022022212 has 12 divisors (see below), whose sum is σ = 28515718051856. Its totient is φ = 4073674007400.

The previous prime is 12221022022193. The next prime is 12221022022247. The reversal of 12221022022212 is 21222022012221.

12221022022212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509209250914 + ... + 509209250937.

Almost surely, 2^{12221022022212} is an apocalyptic number.

12221022022212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12221022022212 is an abundant number, since it is smaller than the sum of its proper divisors (16294696029644).

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

12221022022212 is a wasteful number, since it uses less digits than its factorization.

12221022022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018418501858 (or 1018418501856 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12221022022212 its reverse (21222022012221), we get a palindrome (33443044034433).

Subtracting 12221022022212 from its reverse (21222022012221), we obtain a palindrome (9000999990009).

The spelling of 12221022022212 in words is "twelve trillion, two hundred twenty-one billion, twenty-two million, twenty-two thousand, two hundred twelve".