2111222320 has 80 divisors (see below), whose sum is σ = 4963825152. Its totient is φ = 835051520.

The previous prime is 2111222317. The next prime is 2111222329. The reversal of 2111222320 is 232221112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 2111222294 and 2111222303.

It is not an unprimeable number, because it can be changed into a prime (2111222329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3559944 + ... + 3560536.

Almost surely, 2^2111222320 is an apocalyptic number.

2111222320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111222320 is an abundant number, since it is smaller than the sum of its proper divisors (2852602832).

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

2111222320 is a wasteful number, since it uses less digits than its factorization.

2111222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2111222320 is about 45948.0393488123. The cubic root of 2111222320 is about 1282.8562356898.

Adding to 2111222320 its reverse (232221112), we get a palindrome (2343443432).

The spelling of 2111222320 in words is "two billion, one hundred eleven million, two hundred twenty-two thousand, three hundred twenty".