2211022320 has 320 divisors, whose sum is σ = 7694507520. Its totient is φ = 521662464.

The previous prime is 2211022301. The next prime is 2211022399. The reversal of 2211022320 is 232201122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2211022320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12351991 + ... + 12352169.

It is an arithmetic number, because the mean of its divisors is an integer number (24045336).

Almost surely, 2^2211022320 is an apocalyptic number.

2211022320 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 2211022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3847253760).

2211022320 is an abundant number, since it is smaller than the sum of its proper divisors (5483485200).

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

2211022320 is a wasteful number, since it uses less digits than its factorization.

2211022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2211022320 is about 47021.5091208268. The cubic root of 2211022320 is about 1302.7598802595.

Adding to 2211022320 its reverse (232201122), we get a palindrome (2443223442).

The spelling of 2211022320 in words is "two billion, two hundred eleven million, twenty-two thousand, three hundred twenty".