2211121330 has 48 divisors (see below), whose sum is σ = 4564994112. Its totient is φ = 769076000.

The previous prime is 2211121321. The next prime is 2211121331. The reversal of 2211121330 is 331211122.

It is not an unprimeable number, because it can be changed into a prime (2211121331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11896 + ... + 67555.

It is an arithmetic number, because the mean of its divisors is an integer number (95104044).

Almost surely, 2^2211121330 is an apocalyptic number.

2211121330 is an abundant number, since it is smaller than the sum of its proper divisors (2353872782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211121330 is a wasteful number, since it uses less digits than its factorization.

2211121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79503 (or 79492 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2211121330 is about 47022.5619251014. The cubic root of 2211121330 is about 1302.7793259144.

Adding to 2211121330 its reverse (331211122), we get a palindrome (2542332452).

The spelling of 2211121330 in words is "two billion, two hundred eleven million, one hundred twenty-one thousand, three hundred thirty".