2003112110221 has 4 divisors (see below), whose sum is σ = 2003173548444. Its totient is φ = 2003050672000.

The previous prime is 2003112110141. The next prime is 2003112110231. The reversal of 2003112110221 is 1220112113002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 724830876900 + 1278281233321 = 851370^2 + 1130611^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003112110221 - 2¹⁹ = 2003111585933 is a prime.

It is a super-2 number, since 2×2003112110221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003112110195 and 2003112110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003112110231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30670180 + ... + 30735421.

It is an arithmetic number, because the mean of its divisors is an integer number (500793387111).

Almost surely, 2^{2003112110221} is an apocalyptic number.

It is an amenable number.

2003112110221 is a deficient number, since it is larger than the sum of its proper divisors (61438223).

2003112110221 is an equidigital number, since it uses as much as digits as its factorization.

2003112110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61438222.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2003112110221 its reverse (1220112113002), we get a palindrome (3223224223223).

The spelling of 2003112110221 in words is "two trillion, three billion, one hundred twelve million, one hundred ten thousand, two hundred twenty-one".