3112241221 has 4 divisors (see below), whose sum is σ = 3295314252. Its totient is φ = 2929168192.

The previous prime is 3112241203. The next prime is 3112241233. The reversal of 3112241221 is 1221422113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1743981121 + 1368260100 = 41761^2 + 36990^2 .

It is a cyclic number.

It is not a de Polignac number, because 3112241221 - 2⁵ = 3112241189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112241291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91536490 + ... + 91536523.

It is an arithmetic number, because the mean of its divisors is an integer number (823828563).

Almost surely, 2^3112241221 is an apocalyptic number.

It is an amenable number.

3112241221 is a deficient number, since it is larger than the sum of its proper divisors (183073031).

3112241221 is a wasteful number, since it uses less digits than its factorization.

3112241221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183073030.

The product of its digits is 192, while the sum is 19.

The square root of 3112241221 is about 55787.4647299911. The cubic root of 3112241221 is about 1460.0164539648.

Adding to 3112241221 its reverse (1221422113), we get a palindrome (4333663334).

It can be divided in two parts, 311224 and 1221, that added together give a triangular number (312445 = T₇₉₀).

The spelling of 3112241221 in words is "three billion, one hundred twelve million, two hundred forty-one thousand, two hundred twenty-one".