1322213220240 has 160 divisors (see below), whose sum is σ = 4476533769216. Its totient is φ = 320174599680.

The previous prime is 1322213220227. The next prime is 1322213220257. The reversal of 1322213220240 is 420223122231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1322213220240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2059359 + ... + 2624001.

Almost surely, 2^{1322213220240} is an apocalyptic number.

1322213220240 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 1322213220240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2238266884608).

1322213220240 is an abundant number, since it is smaller than the sum of its proper divisors (3154320548976).

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

1322213220240 is a wasteful number, since it uses less digits than its factorization.

1322213220240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565557 (or 565551 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1322213220240 its reverse (420223122231), we get a palindrome (1742436342471).

The spelling of 1322213220240 in words is "one trillion, three hundred twenty-two billion, two hundred thirteen million, two hundred twenty thousand, two hundred forty".