1404121203221 has 8 divisors (see below), whose sum is σ = 1612387984800. Its totient is φ = 1209290988240.

The previous prime is 1404121203217. The next prime is 1404121203227. The reversal of 1404121203221 is 1223021214041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1404121203221 - 2² = 1404121203217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404121203227) by changing a digit.

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, 3359141426 + ... + 3359141843.

It is an arithmetic number, because the mean of its divisors is an integer number (201548498100).

Almost surely, 2^{1404121203221} is an apocalyptic number.

1404121203221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1404121203221 is a deficient number, since it is larger than the sum of its proper divisors (208266781579).

1404121203221 is a wasteful number, since it uses less digits than its factorization.

1404121203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718283299.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1404121203221 its reverse (1223021214041), we get a palindrome (2627142417262).

The spelling of 1404121203221 in words is "one trillion, four hundred four billion, one hundred twenty-one million, two hundred three thousand, two hundred twenty-one".