2003222211221 has 32 divisors (see below), whose sum is σ = 2634461798400. Its totient is φ = 1475709209280.

The previous prime is 2003222211187. The next prime is 2003222211227. The reversal of 2003222211221 is 1221122223002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2003222211221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2003222211193 and 2003222211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003222211227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 728510 + ... + 2130063.

It is an arithmetic number, because the mean of its divisors is an integer number (82326931200).

Almost surely, 2^{2003222211221} is an apocalyptic number.

It is an amenable number.

2003222211221 is a deficient number, since it is larger than the sum of its proper divisors (631239587179).

2003222211221 is a wasteful number, since it uses less digits than its factorization.

2003222211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859089.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2003222211221 its reverse (1221122223002), we get a palindrome (3224344434223).

The spelling of 2003222211221 in words is "two trillion, three billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twenty-one".