221233241001 has 4 divisors (see below), whose sum is σ = 294977654672. Its totient is φ = 147488827332.

The previous prime is 221233240997. The next prime is 221233241063. The reversal of 221233241001 is 100142332122.

221233241001 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 221233241001 - 2² = 221233240997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221233241081) 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, 36872206831 + ... + 36872206836.

It is an arithmetic number, because the mean of its divisors is an integer number (73744413668).

Almost surely, 2^221233241001 is an apocalyptic number.

It is an amenable number.

221233241001 is a deficient number, since it is larger than the sum of its proper divisors (73744413671).

221233241001 is an equidigital number, since it uses as much as digits as its factorization.

221233241001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73744413670.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221233241001 its reverse (100142332122), we get a palindrome (321375573123).

The spelling of 221233241001 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred forty-one thousand, one".