2111113220 has 48 divisors (see below), whose sum is σ = 4515799680. Its totient is φ = 828785664.

The previous prime is 2111113189. The next prime is 2111113223. The reversal of 2111113220 is 223111112.

It is a junction number, because it is equal to n+sod(n) for n = 2111113195 and 2111113204.

It is not an unprimeable number, because it can be changed into a prime (2111113223) 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 15 ways as a sum of consecutive naturals, for example, 1045652 + ... + 1047668.

It is an arithmetic number, because the mean of its divisors is an integer number (94079160).

Almost surely, 2^2111113220 is an apocalyptic number.

2111113220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111113220 is an abundant number, since it is smaller than the sum of its proper divisors (2404686460).

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

2111113220 is a wasteful number, since it uses less digits than its factorization.

2111113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2111113220 is about 45946.8521228604. The cubic root of 2111113220 is about 1282.8341375866.

Adding to 2111113220 its reverse (223111112), we get a palindrome (2334224332).

The spelling of 2111113220 in words is "two billion, one hundred eleven million, one hundred thirteen thousand, two hundred twenty".