2232101221 has 16 divisors (see below), whose sum is σ = 2585243520. Its totient is φ = 1887621120.

The previous prime is 2232101189. The next prime is 2232101227. The reversal of 2232101221 is 1221012322.

It is a happy number.

It is not a de Polignac number, because 2232101221 - 2⁵ = 2232101189 is a prime.

It is a super-3 number, since 3×2232101221³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2232101195 and 2232101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232101227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302245 + ... + 309541.

It is an arithmetic number, because the mean of its divisors is an integer number (161577720).

Almost surely, 2^2232101221 is an apocalyptic number.

It is an amenable number.

2232101221 is a deficient number, since it is larger than the sum of its proper divisors (353142299).

2232101221 is an equidigital number, since it uses as much as digits as its factorization.

2232101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2232101221 is about 47245.1184885804. The cubic root of 2232101221 is about 1306.8867705529.

Adding to 2232101221 its reverse (1221012322), we get a palindrome (3453113543).

It can be divided in two parts, 2232101 and 221, that added together give a palindrome (2232322).

The spelling of 2232101221 in words is "two billion, two hundred thirty-two million, one hundred one thousand, two hundred twenty-one".