13120220001222 has 48 divisors (see below), whose sum is σ = 28732371464160. Its totient is φ = 4326666400896.

The previous prime is 13120220001199. The next prime is 13120220001281. The reversal of 13120220001222 is 22210002202131.

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 = 13120220001195 and 13120220001204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8356722 + ... + 9801797.

It is an arithmetic number, because the mean of its divisors is an integer number (598591072170).

Almost surely, 2^{13120220001222} is an apocalyptic number.

13120220001222 is an abundant number, since it is smaller than the sum of its proper divisors (15612151462938).

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

13120220001222 is a wasteful number, since it uses less digits than its factorization.

13120220001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18158957 (or 18158954 counting only the distinct ones).

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

Adding to 13120220001222 its reverse (22210002202131), we get a palindrome (35330222203353).

The spelling of 13120220001222 in words is "thirteen trillion, one hundred twenty billion, two hundred twenty million, one thousand, two hundred twenty-two".