222021122012 has 24 divisors (see below), whose sum is σ = 388907944320. Its totient is φ = 110904620400.

The previous prime is 222021121981. The next prime is 222021122021. The reversal of 222021122012 is 210221120222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31009289 + ... + 31016447.

It is an arithmetic number, because the mean of its divisors is an integer number (16204497680).

Almost surely, 2^222021122012 is an apocalyptic number.

It is an amenable number.

222021122012 is a deficient number, since it is larger than the sum of its proper divisors (166886822308).

222021122012 is a wasteful number, since it uses less digits than its factorization.

222021122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13481 (or 13479 counting only the distinct ones).

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

Adding to 222021122012 its reverse (210221120222), we get a palindrome (432242242234).

The spelling of 222021122012 in words is "two hundred twenty-two billion, twenty-one million, one hundred twenty-two thousand, twelve".