222000121 has 8 divisors (see below), whose sum is σ = 256227264. Its totient is φ = 188401200.

The previous prime is 222000113. The next prime is 222000131. The reversal of 222000121 is 121000222.

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 222000121 - 2³ = 222000113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222000098 and 222000107.

It is not an unprimeable number, because it can be changed into a prime (222000101) 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 7 ways as a sum of consecutive naturals, for example, 156295 + ... + 157708.

It is an arithmetic number, because the mean of its divisors is an integer number (32028408).

Almost surely, 2^222000121 is an apocalyptic number.

It is an amenable number.

222000121 is a deficient number, since it is larger than the sum of its proper divisors (34227143).

222000121 is a wasteful number, since it uses less digits than its factorization.

222000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314111.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 222000121 is about 14899.6684862449. The cubic root of 222000121 is about 605.5050046602.

Adding to 222000121 its reverse (121000222), we get a palindrome (343000343).

The spelling of 222000121 in words is "two hundred twenty-two million, one hundred twenty-one", and thus it is an aban number.