13422011121 has 20 divisors (see below), whose sum is σ = 20056875300. Its totient is φ = 8945012736.

The previous prime is 13422011117. The next prime is 13422011137. The reversal of 13422011121 is 12111022431.

13422011121 is a `hidden beast` number, since 1 + 342 + 201 + 1 + 121 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8593290000 + 4828721121 = 92700^2 + 69489^2 .

It is not a de Polignac number, because 13422011121 - 2² = 13422011117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13422011094 and 13422011103.

It is not an unprimeable number, because it can be changed into a prime (13422011111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 230545 + ... + 282833.

It is an arithmetic number, because the mean of its divisors is an integer number (1002843765).

Almost surely, 2^13422011121 is an apocalyptic number.

It is an amenable number.

13422011121 is a deficient number, since it is larger than the sum of its proper divisors (6634864179).

13422011121 is an equidigital number, since it uses as much as digits as its factorization.

13422011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55470 (or 55461 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13422011121 its reverse (12111022431), we get a palindrome (25533033552).

The spelling of 13422011121 in words is "thirteen billion, four hundred twenty-two million, eleven thousand, one hundred twenty-one".