2111221203 has 48 divisors (see below), whose sum is σ = 3554611200. Its totient is φ = 1104715584.

The previous prime is 2111221193. The next prime is 2111221207. The reversal of 2111221203 is 3021221112.

It is not a de Polignac number, because 2111221203 - 2⁴ = 2111221187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111221207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238348 + ... + 247046.

It is an arithmetic number, because the mean of its divisors is an integer number (74054400).

Almost surely, 2^2111221203 is an apocalyptic number.

2111221203 is a deficient number, since it is larger than the sum of its proper divisors (1443389997).

2111221203 is a wasteful number, since it uses less digits than its factorization.

2111221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8856 (or 8849 counting only the distinct ones).

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

The square root of 2111221203 is about 45948.0271937762. The cubic root of 2111221203 is about 1282.8560094463.

Adding to 2111221203 its reverse (3021221112), we get a palindrome (5132442315).

Subtracting 2111221203 from its reverse (3021221112), we obtain a palindrome (909999909).

The spelling of 2111221203 in words is "two billion, one hundred eleven million, two hundred twenty-one thousand, two hundred three".