222101100221212 has 12 divisors (see below), whose sum is σ = 388851926269576. Its totient is φ = 111000549858480.

The previous prime is 222101100221201. The next prime is 222101100221227. The reversal of 222101100221212 is 212122001101222.

It is a self number, because there is not a number n which added to its sum of digits gives 222101100221212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12500053038 + ... + 12500070805.

Almost surely, 2^{222101100221212} is an apocalyptic number.

It is an amenable number.

222101100221212 is a deficient number, since it is larger than the sum of its proper divisors (166750826048364).

222101100221212 is a wasteful number, since it uses less digits than its factorization.

222101100221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25000126068 (or 25000126066 counting only the distinct ones).

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

Adding to 222101100221212 its reverse (212122001101222), we get a palindrome (434223101322434).

The spelling of 222101100221212 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred million, two hundred twenty-one thousand, two hundred twelve".