1044021203205 has 16 divisors (see below), whose sum is σ = 1728035095680. Its totient is φ = 537610918208.

The previous prime is 1044021203081. The next prime is 1044021203209. The reversal of 1044021203205 is 5023021204401.

It is a cyclic number.

It is not a de Polignac number, because 1044021203205 - 2⁸ = 1044021202949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044021203209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200023937 + ... + 1200024806.

It is an arithmetic number, because the mean of its divisors is an integer number (108002193480).

Almost surely, 2^{1044021203205} is an apocalyptic number.

1044021203205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1044021203205 is a deficient number, since it is larger than the sum of its proper divisors (684013892475).

1044021203205 is a wasteful number, since it uses less digits than its factorization.

1044021203205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400048780.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 1044021203205 its reverse (5023021204401), we get a palindrome (6067042407606).

The spelling of 1044021203205 in words is "one trillion, forty-four billion, twenty-one million, two hundred three thousand, two hundred five".