222201201121 has 16 divisors (see below), whose sum is σ = 235521000000. Its totient is φ = 209044570176.

The previous prime is 222201201097. The next prime is 222201201137. The reversal of 222201201121 is 121102102222.

It is a happy number.

222201201121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 222201201121 - 2²⁵ = 222167646689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222201201095 and 222201201104.

It is not an unprimeable number, because it can be changed into a prime (222201201151) 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 15 ways as a sum of consecutive naturals, for example, 18987330 + ... + 18999028.

It is an arithmetic number, because the mean of its divisors is an integer number (14720062500).

Almost surely, 2^222201201121 is an apocalyptic number.

It is an amenable number.

222201201121 is a deficient number, since it is larger than the sum of its proper divisors (13319798879).

222201201121 is a wasteful number, since it uses less digits than its factorization.

222201201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18576.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222201201121 its reverse (121102102222), we get a palindrome (343303303343).

The spelling of 222201201121 in words is "two hundred twenty-two billion, two hundred one million, two hundred one thousand, one hundred twenty-one".