2311144221 has 8 divisors (see below), whose sum is σ = 3081857184. Its totient is φ = 1540597040.

The previous prime is 2311144201. The next prime is 2311144261. The reversal of 2311144221 is 1224411132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2311144221 - 2⁷ = 2311144093 is a prime.

It is a super-2 number, since 2×2311144221² = 10682775220523393682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311144201) 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 7 ways as a sum of consecutive naturals, for example, 4110 + ... + 68111.

It is an arithmetic number, because the mean of its divisors is an integer number (385232148).

Almost surely, 2^2311144221 is an apocalyptic number.

It is an amenable number.

2311144221 is a deficient number, since it is larger than the sum of its proper divisors (770712963).

2311144221 is a wasteful number, since it uses less digits than its factorization.

2311144221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82891.

The product of its digits is 384, while the sum is 21.

The square root of 2311144221 is about 48074.3613686131. The cubic root of 2311144221 is about 1322.1346355342.

Adding to 2311144221 its reverse (1224411132), we get a palindrome (3535555353).

The spelling of 2311144221 in words is "two billion, three hundred eleven million, one hundred forty-four thousand, two hundred twenty-one".