1322112020 has 12 divisors (see below), whose sum is σ = 2776435284. Its totient is φ = 528844800.

The previous prime is 1322112007. The next prime is 1322112031. The reversal of 1322112020 is 202112231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 396248836 + 925863184 = 19906^2 + 30428^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1322111986 and 1322112004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33052781 + ... + 33052820.

It is an arithmetic number, because the mean of its divisors is an integer number (231369607).

Almost surely, 2^1322112020 is an apocalyptic number.

1322112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322112020 is an abundant number, since it is smaller than the sum of its proper divisors (1454323264).

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

1322112020 is a wasteful number, since it uses less digits than its factorization.

1322112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66105610 (or 66105608 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1322112020 is about 36360.8583507045. The cubic root of 1322112020 is about 1097.5460503056.

Adding to 1322112020 its reverse (202112231), we get a palindrome (1524224251).

The spelling of 1322112020 in words is "one billion, three hundred twenty-two million, one hundred twelve thousand, twenty".