2211022240 has 96 divisors (see below), whose sum is σ = 5979222144. Its totient is φ = 756864000.

The previous prime is 2211022237. The next prime is 2211022249. The reversal of 2211022240 is 422201122.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2211022249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 981115 + ... + 983365.

It is an arithmetic number, because the mean of its divisors is an integer number (62283564).

Almost surely, 2^2211022240 is an apocalyptic number.

2211022240 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 2211022240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2989611072).

2211022240 is an abundant number, since it is smaller than the sum of its proper divisors (3768199904).

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

2211022240 is a wasteful number, since it uses less digits than its factorization.

2211022240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150 (or 3142 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2211022240 is about 47021.5082701523. The cubic root of 2211022240 is about 1302.7598645472.

Adding to 2211022240 its reverse (422201122), we get a palindrome (2633223362).

The spelling of 2211022240 in words is "two billion, two hundred eleven million, twenty-two thousand, two hundred forty".