2103221211 has 64 divisors (see below), whose sum is σ = 3527193600. Its totient is φ = 1085331456.

The previous prime is 2103221171. The next prime is 2103221231. The reversal of 2103221211 is 1121223012.

It is not a de Polignac number, because 2103221211 - 2¹⁰ = 2103220187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103221231) 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, 2599375 + ... + 2600183.

It is an arithmetic number, because the mean of its divisors is an integer number (55112400).

Almost surely, 2^2103221211 is an apocalyptic number.

2103221211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2103221211 is a deficient number, since it is larger than the sum of its proper divisors (1423972389).

2103221211 is a wasteful number, since it uses less digits than its factorization.

2103221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2103221211 is about 45860.8897754939. The cubic root of 2103221211 is about 1281.2335948849.

Adding to 2103221211 its reverse (1121223012), we get a palindrome (3224444223).

The spelling of 2103221211 in words is "two billion, one hundred three million, two hundred twenty-one thousand, two hundred eleven".