221440000331 has 4 divisors (see below), whose sum is σ = 241570909464. Its totient is φ = 201309091200.

The previous prime is 221440000261. The next prime is 221440000337. The reversal of 221440000331 is 133000044122.

221440000331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 221440000331 - 2¹⁰ = 221439999307 is a prime.

It is a super-2 number, since 2×221440000331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221440000337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10065454550 + ... + 10065454571.

It is an arithmetic number, because the mean of its divisors is an integer number (60392727366).

Almost surely, 2^221440000331 is an apocalyptic number.

221440000331 is a deficient number, since it is larger than the sum of its proper divisors (20130909133).

221440000331 is a wasteful number, since it uses less digits than its factorization.

221440000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20130909132.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221440000331 its reverse (133000044122), we get a palindrome (354440044453).

The spelling of 221440000331 in words is "two hundred twenty-one billion, four hundred forty million, three hundred thirty-one", and thus it is an aban number.