222001001121 has 8 divisors (see below), whose sum is σ = 296097858784. Its totient is φ = 147952405440.

The previous prime is 222001001099. The next prime is 222001001153. The reversal of 222001001121 is 121100100222.

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

It is a de Polignac number, because none of the positive numbers 2^k-222001001121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222001001097 and 222001001106.

It is not an unprimeable number, because it can be changed into a prime (222001001221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12054760 + ... + 12073161.

It is an arithmetic number, because the mean of its divisors is an integer number (37012232348).

Almost surely, 2^222001001121 is an apocalyptic number.

It is an amenable number.

222001001121 is a deficient number, since it is larger than the sum of its proper divisors (74096857663).

222001001121 is a wasteful number, since it uses less digits than its factorization.

222001001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24130991.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 222001001121 its reverse (121100100222), we get a palindrome (343101101343).

The spelling of 222001001121 in words is "two hundred twenty-two billion, one million, one thousand, one hundred twenty-one".