232440144221 has 4 divisors (see below), whose sum is σ = 242546237472. Its totient is φ = 222334050972.

The previous prime is 232440144193. The next prime is 232440144283. The reversal of 232440144221 is 122441044232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232440144221 - 2¹⁴ = 232440127837 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 (232440164221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5053046591 + ... + 5053046636.

It is an arithmetic number, because the mean of its divisors is an integer number (60636559368).

Almost surely, 2^232440144221 is an apocalyptic number.

It is an amenable number.

232440144221 is a deficient number, since it is larger than the sum of its proper divisors (10106093251).

232440144221 is a wasteful number, since it uses less digits than its factorization.

232440144221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106093250.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 232440144221 its reverse (122441044232), we get a palindrome (354881188453).

The spelling of 232440144221 in words is "two hundred thirty-two billion, four hundred forty million, one hundred forty-four thousand, two hundred twenty-one".