12220220001212 has 12 divisors (see below), whose sum is σ = 22510931581320. Its totient is φ = 5788525263696.

The previous prime is 12220220001151. The next prime is 12220220001263. The reversal of 12220220001212 is 21210002202221.

It is a happy number.

It is a congruent number.

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, 80396184143 + ... + 80396184294.

It is an arithmetic number, because the mean of its divisors is an integer number (1875910965110).

Almost surely, 2^{12220220001212} is an apocalyptic number.

It is an amenable number.

12220220001212 is a deficient number, since it is larger than the sum of its proper divisors (10290711580108).

12220220001212 is a wasteful number, since it uses less digits than its factorization.

12220220001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160792368460 (or 160792368458 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12220220001212 its reverse (21210002202221), we get a palindrome (33430222203433).

The spelling of 12220220001212 in words is "twelve trillion, two hundred twenty billion, two hundred twenty million, one thousand, two hundred twelve".