13323121221120 has 160 divisors (see below), whose sum is σ = 42808562853408. Its totient is φ = 3534797242368.

The previous prime is 13323121221013. The next prime is 13323121221131. The reversal of 13323121221120 is 2112212132331.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 2890039 + ... + 5915958.

Almost surely, 2^{13323121221120} is an apocalyptic number.

13323121221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13323121221120 is an abundant number, since it is smaller than the sum of its proper divisors (29485441632288).

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

13323121221120 is an equidigital number, since it uses as much as digits as its factorization.

13323121221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8806220 (or 8806204 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 13323121221120 its reverse (2112212132331), we get a palindrome (15435333353451).

The spelling of 13323121221120 in words is "thirteen trillion, three hundred twenty-three billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty".