13222134340000 has 120 divisors (see below), whose sum is σ = 32624973969588. Its totient is φ = 5273157120000.

The previous prime is 13222134339977. The next prime is 13222134340061. The reversal of 13222134340000 is 4343122231.

It can be written as a sum of positive squares in 10 ways, for example, as 1477887587856 + 11744246752144 = 1215684^2 + 3426988^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5759130 + ... + 7720870.

Almost surely, 2^{13222134340000} is an apocalyptic number.

13222134340000 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 13222134340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16312486984794).

13222134340000 is an abundant number, since it is smaller than the sum of its proper divisors (19402839629588).

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

13222134340000 is an equidigital number, since it uses as much as digits as its factorization.

13222134340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962108 (or 1962085 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13222134340000 its reverse (4343122231), we get a palindrome (13226477462231).

The spelling of 13222134340000 in words is "thirteen trillion, two hundred twenty-two billion, one hundred thirty-four million, three hundred forty thousand".