13122212012121 has 8 divisors (see below), whose sum is σ = 17553273832864. Its totient is φ = 8719645766400.

The previous prime is 13122212012093. The next prime is 13122212012137. The reversal of 13122212012121 is 12121021222131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13122212012121 - 2²¹ = 13122209914969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13122212012141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7123892680 + ... + 7123894521.

It is an arithmetic number, because the mean of its divisors is an integer number (2194159229108).

Almost surely, 2^{13122212012121} is an apocalyptic number.

It is an amenable number.

13122212012121 is a deficient number, since it is larger than the sum of its proper divisors (4431061820743).

13122212012121 is a wasteful number, since it uses less digits than its factorization.

13122212012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14247787511.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 13122212012121 its reverse (12121021222131), we get a palindrome (25243233234252).

The spelling of 13122212012121 in words is "thirteen trillion, one hundred twenty-two billion, two hundred twelve million, twelve thousand, one hundred twenty-one".