12222220001212 has 24 divisors (see below), whose sum is σ = 23034279366000. Its totient is φ = 5641001223936.

The previous prime is 12222220001197. The next prime is 12222220001293. The reversal of 12222220001212 is 21210002222221.

It is a super-2 number, since 2×12222220001212² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12222220001212.

It is a congruent number.

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, 22498164 + ... + 23035012.

It is an arithmetic number, because the mean of its divisors is an integer number (959761640250).

Almost surely, 2^{12222220001212} is an apocalyptic number.

It is an amenable number.

12222220001212 is a deficient number, since it is larger than the sum of its proper divisors (10812059364788).

12222220001212 is a wasteful number, since it uses less digits than its factorization.

12222220001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974685 (or 974683 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12222220001212 its reverse (21210002222221), we get a palindrome (33432222223433).

The spelling of 12222220001212 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty million, one thousand, two hundred twelve".