222120201121 has 48 divisors (see below), whose sum is σ = 287818247808. Its totient is φ = 169790342400.

The previous prime is 222120201109. The next prime is 222120201131. The reversal of 222120201121 is 121102021222.

It is a happy number.

It is not a de Polignac number, because 222120201121 - 2⁷ = 222120200993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222120201095 and 222120201104.

It is not an unprimeable number, because it can be changed into a prime (222120201101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2648766 + ... + 2731336.

It is an arithmetic number, because the mean of its divisors is an integer number (5996213496).

Almost surely, 2^222120201121 is an apocalyptic number.

It is an amenable number.

222120201121 is a deficient number, since it is larger than the sum of its proper divisors (65698046687).

222120201121 is a wasteful number, since it uses less digits than its factorization.

222120201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82742 (or 82735 counting only the distinct ones).

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

Adding to 222120201121 its reverse (121102021222), we get a palindrome (343222222343).

The spelling of 222120201121 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred one thousand, one hundred twenty-one".