1322012120 has 96 divisors (see below), whose sum is σ = 3521190960. Its totient is φ = 443731200.

The previous prime is 1322012093. The next prime is 1322012137. The reversal of 1322012120 is 212102231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1322012095 and 1322012104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52415 + ... + 73425.

Almost surely, 2^1322012120 is an apocalyptic number.

1322012120 is a gapful number since it is divisible by the number (10) 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 1322012120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1760595480).

1322012120 is an abundant number, since it is smaller than the sum of its proper divisors (2199178840).

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

1322012120 is a wasteful number, since it uses less digits than its factorization.

1322012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21057 (or 21042 counting only the distinct ones).

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

The square root of 1322012120 is about 36359.4845948069. The cubic root of 1322012120 is about 1097.5184057464.

Adding to 1322012120 its reverse (212102231), we get a palindrome (1534114351).

The spelling of 1322012120 in words is "one billion, three hundred twenty-two million, twelve thousand, one hundred twenty".