221103241404 has 24 divisors (see below), whose sum is σ = 521015561808. Its totient is φ = 72971366400.

The previous prime is 221103241399. The next prime is 221103241409. The reversal of 221103241404 is 404142301122.

It is an interprime number because it is at equal distance from previous prime (221103241399) and next prime (221103241409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221103241409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91212997 + ... + 91215420.

It is an arithmetic number, because the mean of its divisors is an integer number (21708981742).

Almost surely, 2^221103241404 is an apocalyptic number.

It is an amenable number.

221103241404 is an abundant number, since it is smaller than the sum of its proper divisors (299912320404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221103241404 is a wasteful number, since it uses less digits than its factorization.

221103241404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182428525 (or 182428523 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 221103241404 its reverse (404142301122), we get a palindrome (625245542526).

The spelling of 221103241404 in words is "two hundred twenty-one billion, one hundred three million, two hundred forty-one thousand, four hundred four".