222112020212 has 6 divisors (see below), whose sum is σ = 388696035378. Its totient is φ = 111056010104.

The previous prime is 222112020157. The next prime is 222112020259. The reversal of 222112020212 is 212020211222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 195501928336 + 26610091876 = 442156^2 + 163126^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27764002523 + ... + 27764002530.

It is an arithmetic number, because the mean of its divisors is an integer number (64782672563).

Almost surely, 2^222112020212 is an apocalyptic number.

It is an amenable number.

222112020212 is a deficient number, since it is larger than the sum of its proper divisors (166584015166).

222112020212 is a wasteful number, since it uses less digits than its factorization.

222112020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55528005057 (or 55528005055 counting only the distinct ones).

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

Adding to 222112020212 its reverse (212020211222), we get a palindrome (434132231434).

The spelling of 222112020212 in words is "two hundred twenty-two billion, one hundred twelve million, twenty thousand, two hundred twelve".