2221240232 has 8 divisors (see below), whose sum is σ = 4164825450. Its totient is φ = 1110620112.

The previous prime is 2221240223. The next prime is 2221240237. The reversal of 2221240232 is 2320421222.

It can be written as a sum of positive squares in only one way, i.e., 2157974116 + 63266116 = 46454^2 + 7954^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×2221240232³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221240237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138827507 + ... + 138827522.

Almost surely, 2^2221240232 is an apocalyptic number.

It is an amenable number.

2221240232 is a deficient number, since it is larger than the sum of its proper divisors (1943585218).

2221240232 is a wasteful number, since it uses less digits than its factorization.

2221240232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277655035 (or 277655031 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2221240232 is about 47130.0353490213. The cubic root of 2221240232 is about 1304.7636339820.

Adding to 2221240232 its reverse (2320421222), we get a palindrome (4541661454).

The spelling of 2221240232 in words is "two billion, two hundred twenty-one million, two hundred forty thousand, two hundred thirty-two".