13222212120 has 128 divisors (see below), whose sum is σ = 47464401600. Its totient is φ = 3254694912.

The previous prime is 13222212061. The next prime is 13222212137. The reversal of 13222212120 is 2121222231.

13222212120 is a `hidden beast` number, since 1 + 322 + 221 + 2 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13222212093 and 13222212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456837 + ... + 484916.

Almost surely, 2^13222212120 is an apocalyptic number.

13222212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13222212120 is an abundant number, since it is smaller than the sum of its proper divisors (34242189480).

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

13222212120 is a wasteful number, since it uses less digits than its factorization.

13222212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941786 (or 941776 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13222212120 its reverse (2121222231), we get a palindrome (15343434351).

The spelling of 13222212120 in words is "thirteen billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty".