13323121222212 has 120 divisors (see below), whose sum is σ = 34873684544160. Its totient is φ = 4435381117440.

The previous prime is 13323121222181. The next prime is 13323121222217. The reversal of 13323121222212 is 21222212132331.

13323121222212 is a `hidden beast` number, since 1 + 3 + 3 + 2 + 312 + 122 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13323121222217) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 914979412 + ... + 914993972.

It is an arithmetic number, because the mean of its divisors is an integer number (290614037868).

Almost surely, 2^{13323121222212} is an apocalyptic number.

13323121222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13323121222212 is an abundant number, since it is smaller than the sum of its proper divisors (21550563321948).

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

13323121222212 is a wasteful number, since it uses less digits than its factorization.

13323121222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17983 (or 17972 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 13323121222212 its reverse (21222212132331), we get a palindrome (34545333354543).

The spelling of 13323121222212 in words is "thirteen trillion, three hundred twenty-three billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twelve".