2111030220 has 96 divisors (see below), whose sum is σ = 6455393280. Its totient is φ = 512305920.

The previous prime is 2111030197. The next prime is 2111030221. The reversal of 2111030220 is 220301112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2111030196 and 2111030205.

It is not an unprimeable number, because it can be changed into a prime (2111030221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36321 + ... + 74439.

It is an arithmetic number, because the mean of its divisors is an integer number (67243680).

Almost surely, 2^2111030220 is an apocalyptic number.

2111030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111030220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3227696640).

2111030220 is an abundant number, since it is smaller than the sum of its proper divisors (4344363060).

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

2111030220 is a wasteful number, since it uses less digits than its factorization.

2111030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38215 (or 38213 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2111030220 is about 45945.9488965023. The cubic root of 2111030220 is about 1282.8173255041.

Adding to 2111030220 its reverse (220301112), we get a palindrome (2331331332).

The spelling of 2111030220 in words is "two billion, one hundred eleven million, thirty thousand, two hundred twenty".