1322112781572 has 48 divisors (see below), whose sum is σ = 3400072640832. Its totient is φ = 396509921280.

The previous prime is 1322112781571. The next prime is 1322112781573. The reversal of 1322112781572 is 2751872112231.

It is an interprime number because it is at equal distance from previous prime (1322112781571) and next prime (1322112781573).

It is not an unprimeable number, because it can be changed into a prime (1322112781571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51616093 + ... + 51641700.

It is an arithmetic number, because the mean of its divisors is an integer number (70834846684).

Almost surely, 2^{1322112781572} is an apocalyptic number.

1322112781572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1322112781572 is an abundant number, since it is smaller than the sum of its proper divisors (2077959859260).

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

1322112781572 is a wasteful number, since it uses less digits than its factorization.

1322112781572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103257908 (or 103257906 counting only the distinct ones).

The product of its digits is 94080, while the sum is 42.

The spelling of 1322112781572 in words is "one trillion, three hundred twenty-two billion, one hundred twelve million, seven hundred eighty-one thousand, five hundred seventy-two".