222112321121 has 8 divisors (see below), whose sum is σ = 225371513664. Its totient is φ = 218856763440.

The previous prime is 222112321099. The next prime is 222112321127. The reversal of 222112321121 is 121123211222.

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

It is a cyclic number.

It is not a de Polignac number, because 222112321121 - 2¹⁴ = 222112304737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222112321093 and 222112321102.

It is not an unprimeable number, because it can be changed into a prime (222112321127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785486 + ... + 1030151.

It is an arithmetic number, because the mean of its divisors is an integer number (28171439208).

Almost surely, 2^222112321121 is an apocalyptic number.

It is an amenable number.

222112321121 is a deficient number, since it is larger than the sum of its proper divisors (3259192543).

222112321121 is a wasteful number, since it uses less digits than its factorization.

222112321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817431.

The product of its digits is 192, while the sum is 20.

Adding to 222112321121 its reverse (121123211222), we get a palindrome (343235532343).

The spelling of 222112321121 in words is "two hundred twenty-two billion, one hundred twelve million, three hundred twenty-one thousand, one hundred twenty-one".