13122241220 has 24 divisors (see below), whose sum is σ = 30061862208. Its totient is φ = 4771724000.

The previous prime is 13122241219. The next prime is 13122241241. The reversal of 13122241220 is 2214222131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13122241192 and 13122241201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29823056 + ... + 29823495.

It is an arithmetic number, because the mean of its divisors is an integer number (1252577592).

Almost surely, 2^13122241220 is an apocalyptic number.

13122241220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122241220 is an abundant number, since it is smaller than the sum of its proper divisors (16939620988).

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

13122241220 is a wasteful number, since it uses less digits than its factorization.

13122241220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59646571 (or 59646569 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13122241220 its reverse (2214222131), we get a palindrome (15336463351).

The spelling of 13122241220 in words is "thirteen billion, one hundred twenty-two million, two hundred forty-one thousand, two hundred twenty".