2113220000 has 120 divisors (see below), whose sum is σ = 5239725876. Its totient is φ = 838656000.

The previous prime is 2113219949. The next prime is 2113220009. The reversal of 2113220000 is 223112.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 448253584 + 1664966416 = 21172^2 + 40804^2 .

It is not an unprimeable number, because it can be changed into a prime (2113220009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3139664 + ... + 3140336.

Almost surely, 2^2113220000 is an apocalyptic number.

2113220000 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 2113220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2619862938).

2113220000 is an abundant number, since it is smaller than the sum of its proper divisors (3126505876).

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

2113220000 is an equidigital number, since it uses as much as digits as its factorization.

2113220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2113220000 is about 45969.7726772713. The cubic root of 2113220000 is about 1283.2607293870.

Adding to 2113220000 its reverse (223112), we get a palindrome (2113443112).

The spelling of 2113220000 in words is "two billion, one hundred thirteen million, two hundred twenty thousand".