2003020231221 has 24 divisors (see below), whose sum is σ = 2965281830784. Its totient is φ = 1302134187840.

The previous prime is 2003020231153. The next prime is 2003020231237. The reversal of 2003020231221 is 1221320203002.

It is not a de Polignac number, because 2003020231221 - 2³⁹ = 1453264417333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2003020231194 and 2003020231203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003020231271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591021 + ... + 2086946.

It is an arithmetic number, because the mean of its divisors is an integer number (123553409616).

Almost surely, 2^{2003020231221} is an apocalyptic number.

It is an amenable number.

2003020231221 is a deficient number, since it is larger than the sum of its proper divisors (962261599563).

2003020231221 is a wasteful number, since it uses less digits than its factorization.

2003020231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680041 (or 2680038 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2003020231221 its reverse (1221320203002), we get a palindrome (3224340434223).

The spelling of 2003020231221 in words is "two trillion, three billion, twenty million, two hundred thirty-one thousand, two hundred twenty-one".