222120221122 has 8 divisors (see below), whose sum is σ = 335106230076. Its totient is φ = 110418144432.

The previous prime is 222120221093. The next prime is 222120221131. The reversal of 222120221122 is 221122021222.

It can be written as a sum of positive squares in 2 ways, for example, as 220861461681 + 1258759441 = 469959^2 + 35479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 222120221122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320982633 + ... + 320983324.

Almost surely, 2^222120221122 is an apocalyptic number.

222120221122 is a deficient number, since it is larger than the sum of its proper divisors (112986008954).

222120221122 is a wasteful number, since it uses less digits than its factorization.

222120221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641966132.

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

Adding to 222120221122 its reverse (221122021222), we get a palindrome (443242242344).

The spelling of 222120221122 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, one hundred twenty-two".