2003221441221 has 576 divisors, whose sum is σ = 3977732505600. Its totient is φ = 893577484800.

The previous prime is 2003221441213. The next prime is 2003221441253. The reversal of 2003221441221 is 1221441223002.

It is not a de Polignac number, because 2003221441221 - 2³ = 2003221441213 is a prime.

It is a super-2 number, since 2×2003221441221² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2003221441191 and 2003221441200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003221441201) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 24135198046 + ... + 24135198128.

It is an arithmetic number, because the mean of its divisors is an integer number (6905785600).

Almost surely, 2^{2003221441221} is an apocalyptic number.

2003221441221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2003221441221 is a deficient number, since it is larger than the sum of its proper divisors (1974511064379).

2003221441221 is a wasteful number, since it uses less digits than its factorization.

2003221441221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 185 counting only the distinct ones).

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

Adding to 2003221441221 its reverse (1221441223002), we get a palindrome (3224662664223).

It can be divided in two parts, 2003221 and 441221, that added together give a palindrome (2444442).

The spelling of 2003221441221 in words is "two trillion, three billion, two hundred twenty-one million, four hundred forty-one thousand, two hundred twenty-one".