222220010212 has 6 divisors (see below), whose sum is σ = 388885017878. Its totient is φ = 111110005104.

The previous prime is 222220010153. The next prime is 222220010213. The reversal of 222220010212 is 212010022222.

222220010212 is digitally balanced in base 2, 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., 217588663296 + 4631346916 = 466464^2 + 68054^2 .

It is not an unprimeable number, because it can be changed into a prime (222220010213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27777501273 + ... + 27777501280.

Almost surely, 2^222220010212 is an apocalyptic number.

It is an amenable number.

222220010212 is a deficient number, since it is larger than the sum of its proper divisors (166665007666).

222220010212 is a wasteful number, since it uses less digits than its factorization.

222220010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55555002557 (or 55555002555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222220010212 its reverse (212010022222), we get a palindrome (434230032434).

The spelling of 222220010212 in words is "two hundred twenty-two billion, two hundred twenty million, ten thousand, two hundred twelve".