222320220212 has 6 divisors (see below), whose sum is σ = 389060385378. Its totient is φ = 111160110104.

The previous prime is 222320220203. The next prime is 222320220251. The reversal of 222320220212 is 212022023222.

222320220212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 143675870116 + 78644350096 = 379046^2 + 280436^2 .

It is a super-2 number, since 2×222320220212² (a number of 23 digits) contains 22 as substring.

It is a congruent 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 as a sum of consecutive naturals, namely, 27790027523 + ... + 27790027530.

It is an arithmetic number, because the mean of its divisors is an integer number (64843397563).

Almost surely, 2^222320220212 is an apocalyptic number.

It is an amenable number.

222320220212 is a deficient number, since it is larger than the sum of its proper divisors (166740165166).

222320220212 is a wasteful number, since it uses less digits than its factorization.

222320220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55580055057 (or 55580055055 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 222320220212 its reverse (212022023222), we get a palindrome (434342243434).

The spelling of 222320220212 in words is "two hundred twenty-two billion, three hundred twenty million, two hundred twenty thousand, two hundred twelve".