223210211121 has 24 divisors (see below), whose sum is σ = 333820847360. Its totient is φ = 143571463200.

The previous prime is 223210211117. The next prime is 223210211137. The reversal of 223210211121 is 121112012322.

223210211121 is a `hidden beast` number, since 223 + 210 + 211 + 1 + 21 = 666.

It is not a de Polignac number, because 223210211121 - 2² = 223210211117 is a prime.

It is a super-3 number, since 3×223210211121³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223210211094 and 223210211103.

It is not an unprimeable number, because it can be changed into a prime (223210211111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1116166 + ... + 1300863.

Almost surely, 2^223210211121 is an apocalyptic number.

It is an amenable number.

223210211121 is a deficient number, since it is larger than the sum of its proper divisors (110610636239).

223210211121 is a wasteful number, since it uses less digits than its factorization.

223210211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417397 (or 2417394 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 223210211121 its reverse (121112012322), we get a palindrome (344322223443).

The spelling of 223210211121 in words is "two hundred twenty-three billion, two hundred ten million, two hundred eleven thousand, one hundred twenty-one".