2002220162221 has 4 divisors (see below), whose sum is σ = 2002302100512. Its totient is φ = 2002138223932.

The previous prime is 2002220162219. The next prime is 2002220162233. The reversal of 2002220162221 is 1222610222002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2002220162221 - 2¹ = 2002220162219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002220162192 and 2002220162201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002220102221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40932481 + ... + 40981366.

It is an arithmetic number, because the mean of its divisors is an integer number (500575525128).

Almost surely, 2^{2002220162221} is an apocalyptic number.

It is an amenable number.

2002220162221 is a deficient number, since it is larger than the sum of its proper divisors (81938291).

2002220162221 is an equidigital number, since it uses as much as digits as its factorization.

2002220162221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81938290.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2002220162221 its reverse (1222610222002), we get a palindrome (3224830384223).

The spelling of 2002220162221 in words is "two trillion, two billion, two hundred twenty million, one hundred sixty-two thousand, two hundred twenty-one".