13122001002 has 64 divisors (see below), whose sum is σ = 29586332160. Its totient is φ = 3845352000.

The previous prime is 13122000971. The next prime is 13122001003. The reversal of 13122001002 is 20010022131.

It is not an unprimeable number, because it can be changed into a prime (13122001003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263749 + ... + 309527.

It is an arithmetic number, because the mean of its divisors is an integer number (462286440).

Almost surely, 2^13122001002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13122001002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14793166080).

13122001002 is an abundant number, since it is smaller than the sum of its proper divisors (16464331158).

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

13122001002 is a wasteful number, since it uses less digits than its factorization.

13122001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45939.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 13122001002 its reverse (20010022131), we get a palindrome (33132023133).

The spelling of 13122001002 in words is "thirteen billion, one hundred twenty-two million, one thousand, two".