222200111212 has 24 divisors (see below), whose sum is σ = 393700520304. Its totient is φ = 109719155712.

The previous prime is 222200111183. The next prime is 222200111233. The reversal of 222200111212 is 212111002222.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431953 + ... + 794344.

It is an arithmetic number, because the mean of its divisors is an integer number (16404188346).

Almost surely, 2^222200111212 is an apocalyptic number.

It is an amenable number.

222200111212 is a deficient number, since it is larger than the sum of its proper divisors (171500409092).

222200111212 is a wasteful number, since it uses less digits than its factorization.

222200111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226865 (or 1226863 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222200111212 its reverse (212111002222), we get a palindrome (434311113434).

The spelling of 222200111212 in words is "two hundred twenty-two billion, two hundred million, one hundred eleven thousand, two hundred twelve".