2002111122221 has 8 divisors (see below), whose sum is σ = 2288172999360. Its totient is φ = 1716060745728.

The previous prime is 2002111122217. The next prime is 2002111122247. The reversal of 2002111122221 is 1222211112002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2002111122221 - 2² = 2002111122217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2002111122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002111121221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2498831 + ... + 3201308.

It is an arithmetic number, because the mean of its divisors is an integer number (286021624920).

Almost surely, 2^{2002111122221} is an apocalyptic number.

It is an amenable number.

2002111122221 is a deficient number, since it is larger than the sum of its proper divisors (286061877139).

2002111122221 is an equidigital number, since it uses as much as digits as its factorization.

2002111122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5750323.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2002111122221 its reverse (1222211112002), we get a palindrome (3224322234223).

The spelling of 2002111122221 in words is "two trillion, two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twenty-one".