221124037404 has 24 divisors (see below), whose sum is σ = 516052122768. Its totient is φ = 73694293120.

The previous prime is 221124037369. The next prime is 221124037429. The reversal of 221124037404 is 404730421122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1647657 + ... + 1776800.

It is an arithmetic number, because the mean of its divisors is an integer number (21502171782).

Almost surely, 2^221124037404 is an apocalyptic number.

It is an amenable number.

221124037404 is an abundant number, since it is smaller than the sum of its proper divisors (294928085364).

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

221124037404 is a wasteful number, since it uses less digits than its factorization.

221124037404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429845 (or 3429843 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

Adding to 221124037404 its reverse (404730421122), we get a palindrome (625854458526).

The spelling of 221124037404 in words is "two hundred twenty-one billion, one hundred twenty-four million, thirty-seven thousand, four hundred four".