2003222302221 has 64 divisors (see below), whose sum is σ = 3256367063040. Its totient is φ = 1069275755520.

The previous prime is 2003222302199. The next prime is 2003222302223. The reversal of 2003222302221 is 1222032223002.

It is not a de Polignac number, because 2003222302221 - 2⁶ = 2003222302157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003222302223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 311976591 + ... + 311983011.

It is an arithmetic number, because the mean of its divisors is an integer number (50880735360).

Almost surely, 2^{2003222302221} is an apocalyptic number.

2003222302221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2003222302221 is a deficient number, since it is larger than the sum of its proper divisors (1253144760819).

2003222302221 is a wasteful number, since it uses less digits than its factorization.

2003222302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12874.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 2003222302221 its reverse (1222032223002), we get a palindrome (3225254525223).

The spelling of 2003222302221 in words is "two trillion, three billion, two hundred twenty-two million, three hundred two thousand, two hundred twenty-one".