222100001121 has 24 divisors (see below), whose sum is σ = 305947805184. Its totient is φ = 143310093120.

The previous prime is 222100001111. The next prime is 222100001143. The reversal of 222100001121 is 121100001222.

It is not a de Polignac number, because 222100001121 - 2¹¹ = 222099999073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222100001097 and 222100001106.

It is not an unprimeable number, because it can be changed into a prime (222100001111) 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 23 ways as a sum of consecutive naturals, for example, 642871 + ... + 926003.

It is an arithmetic number, because the mean of its divisors is an integer number (12747825216).

Almost surely, 2^222100001121 is an apocalyptic number.

It is an amenable number.

222100001121 is a deficient number, since it is larger than the sum of its proper divisors (83847804063).

222100001121 is a wasteful number, since it uses less digits than its factorization.

222100001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283401 (or 283364 counting only the distinct ones).

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

Adding to 222100001121 its reverse (121100001222), we get a palindrome (343200002343).

The spelling of 222100001121 in words is "two hundred twenty-two billion, one hundred million, one thousand, one hundred twenty-one".