221042033404 has 24 divisors (see below), whose sum is σ = 390704670720. Its totient is φ = 109415856816.

The previous prime is 221042033383. The next prime is 221042033431. The reversal of 221042033404 is 404330240122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228634 + ... + 703105.

It is an arithmetic number, because the mean of its divisors is an integer number (16279361280).

Almost surely, 2^221042033404 is an apocalyptic number.

It is an amenable number.

221042033404 is a deficient number, since it is larger than the sum of its proper divisors (169662637316).

221042033404 is a wasteful number, since it uses less digits than its factorization.

221042033404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932337 (or 932335 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 221042033404 its reverse (404330240122), we get a palindrome (625372273526).

The spelling of 221042033404 in words is "two hundred twenty-one billion, forty-two million, thirty-three thousand, four hundred four".