222231000121 has 8 divisors (see below), whose sum is σ = 239486442440. Its totient is φ = 204998522112.

The previous prime is 222231000067. The next prime is 222231000181. The reversal of 222231000121 is 121000132222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8787000121 + 213444000000 = 93739^2 + 462000^2 .

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 222231000121 - 2³¹ = 220083516473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222231000095 and 222231000104.

It is not an unprimeable number, because it can be changed into a prime (222231000181) 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, 5720970 + ... + 5759683.

It is an arithmetic number, because the mean of its divisors is an integer number (29935805305).

Almost surely, 2^222231000121 is an apocalyptic number.

It is an amenable number.

222231000121 is a deficient number, since it is larger than the sum of its proper divisors (17255442319).

222231000121 is a wasteful number, since it uses less digits than its factorization.

222231000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11482155.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 222231000121 its reverse (121000132222), we get a palindrome (343231132343).

The spelling of 222231000121 in words is "two hundred twenty-two billion, two hundred thirty-one million, one hundred twenty-one", and thus it is an aban number.