13122211213220 has 48 divisors (see below), whose sum is σ = 28143480879360. Its totient is φ = 5137110119424.

The previous prime is 13122211213217. The next prime is 13122211213231. The reversal of 13122211213220 is 2231211222131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70620596 + ... + 70806164.

It is an arithmetic number, because the mean of its divisors is an integer number (586322518320).

Almost surely, 2^{13122211213220} is an apocalyptic number.

13122211213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122211213220 is an abundant number, since it is smaller than the sum of its proper divisors (15021269666140).

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

13122211213220 is a wasteful number, since it uses less digits than its factorization.

13122211213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260852 (or 260850 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 13122211213220 its reverse (2231211222131), we get a palindrome (15353422435351).

The spelling of 13122211213220 in words is "thirteen trillion, one hundred twenty-two billion, two hundred eleven million, two hundred thirteen thousand, two hundred twenty".