2232112221 has 24 divisors (see below), whose sum is σ = 3376717344. Its totient is φ = 1473325200.

The previous prime is 2232112219. The next prime is 2232112247. The reversal of 2232112221 is 1222112322.

It is not a de Polignac number, because 2232112221 - 2¹ = 2232112219 is a prime.

It is a super-3 number, since 3×2232112221³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2232112194 and 2232112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232112261) 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, 20931 + ... + 70016.

It is an arithmetic number, because the mean of its divisors is an integer number (140696556).

Almost surely, 2^2232112221 is an apocalyptic number.

It is an amenable number.

2232112221 is a deficient number, since it is larger than the sum of its proper divisors (1144605123).

2232112221 is an equidigital number, since it uses as much as digits as its factorization.

2232112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91063 (or 91051 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2232112221 is about 47245.2349025804. The cubic root of 2232112221 is about 1306.8889173688. Note that the first 3 decimals are identical.

Adding to 2232112221 its reverse (1222112322), we get a palindrome (3454224543).

The spelling of 2232112221 in words is "two billion, two hundred thirty-two million, one hundred twelve thousand, two hundred twenty-one".