1322100312 has 32 divisors (see below), whose sum is σ = 3559501680. Its totient is φ = 406800000.

The previous prime is 1322100287. The next prime is 1322100331. The reversal of 1322100312 is 2130012231.

It is a junction number, because it is equal to n+sod(n) for n = 1322100291 and 1322100300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2118439 + ... + 2119062.

Almost surely, 2^1322100312 is an apocalyptic number.

1322100312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1322100312 is an abundant number, since it is smaller than the sum of its proper divisors (2237401368).

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

1322100312 is a wasteful number, since it uses less digits than its factorization.

1322100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237523 (or 4237519 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1322100312 is about 36360.6973530487. The cubic root of 1322100312 is about 1097.5428105128.

Adding to 1322100312 its reverse (2130012231), we get a palindrome (3452112543).

The spelling of 1322100312 in words is "one billion, three hundred twenty-two million, one hundred thousand, three hundred twelve".