222212221012 has 48 divisors (see below), whose sum is σ = 403697548800. Its totient is φ = 106962285312.

The previous prime is 222212221009. The next prime is 222212221019. The reversal of 222212221012 is 210122212222.

222212221012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212221019) 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 in 15 ways as a sum of consecutive naturals, for example, 2846728 + ... + 2923744.

It is an arithmetic number, because the mean of its divisors is an integer number (8410365600).

Almost surely, 2^222212221012 is an apocalyptic number.

It is an amenable number.

222212221012 is a deficient number, since it is larger than the sum of its proper divisors (181485327788).

222212221012 is a wasteful number, since it uses less digits than its factorization.

222212221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77320 (or 77318 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222212221012 its reverse (210122212222), we get a palindrome (432334433234).

The spelling of 222212221012 in words is "two hundred twenty-two billion, two hundred twelve million, two hundred twenty-one thousand, twelve".