2112221321330 has 32 divisors (see below), whose sum is σ = 3804095911536. Its totient is φ = 844422568704.

The previous prime is 2112221321303. The next prime is 2112221321363. The reversal of 2112221321330 is 331231222112.

It can be written as a sum of positive squares in 8 ways, for example, as 980216823481 + 1132004497849 = 990059^2 + 1063957^2 .

It is a super-2 number, since 2×2112221321330² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112221321296 and 2112221321305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192768212 + ... + 192779168.

Almost surely, 2^{2112221321330} is an apocalyptic number.

2112221321330 is a deficient number, since it is larger than the sum of its proper divisors (1691874590206).

2112221321330 is a wasteful number, since it uses less digits than its factorization.

2112221321330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19838.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2112221321330 its reverse (331231222112), we get a palindrome (2443452543442).

The spelling of 2112221321330 in words is "two trillion, one hundred twelve billion, two hundred twenty-one million, three hundred twenty-one thousand, three hundred thirty".