1322887822872 has 256 divisors, whose sum is σ = 4529013350400. Its totient is φ = 311369287680.

The previous prime is 1322887822871. The next prime is 1322887822877. The reversal of 1322887822872 is 2782287882231.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322887822871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11473 + ... + 1626624.

It is an arithmetic number, because the mean of its divisors is an integer number (17691458400).

Almost surely, 2^{1322887822872} is an apocalyptic number.

1322887822872 is a gapful number since it is divisible by the number (12) 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 1322887822872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2264506675200).

1322887822872 is an abundant number, since it is smaller than the sum of its proper divisors (3206125527528).

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

1322887822872 is a wasteful number, since it uses less digits than its factorization.

1322887822872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638166 (or 1638162 counting only the distinct ones).

The product of its digits is 19267584, while the sum is 60.

The spelling of 1322887822872 in words is "one trillion, three hundred twenty-two billion, eight hundred eighty-seven million, eight hundred twenty-two thousand, eight hundred seventy-two".