13122213240 has 32 divisors (see below), whose sum is σ = 39366640080. Its totient is φ = 3499256832.

The previous prime is 13122213227. The next prime is 13122213241. The reversal of 13122213240 is 4231222131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122213241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54675769 + ... + 54676008.

Almost surely, 2^13122213240 is an apocalyptic number.

13122213240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122213240 is an abundant number, since it is smaller than the sum of its proper divisors (26244426840).

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

13122213240 is a wasteful number, since it uses less digits than its factorization.

13122213240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109351791 (or 109351787 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13122213240 its reverse (4231222131), we get a palindrome (17353435371).

The spelling of 13122213240 in words is "thirteen billion, one hundred twenty-two million, two hundred thirteen thousand, two hundred forty".