222120013013 has 4 divisors (see below), whose sum is σ = 227537574348. Its totient is φ = 216702451680.

The previous prime is 222120013009. The next prime is 222120013051. The reversal of 222120013013 is 310310021222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112411337284 + 109708675729 = 335278^2 + 331223^2 .

It is a cyclic number.

It is not a de Polignac number, because 222120013013 - 2² = 222120013009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222120012982 and 222120013000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120013813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2708780606 + ... + 2708780687.

It is an arithmetic number, because the mean of its divisors is an integer number (56884393587).

Almost surely, 2^222120013013 is an apocalyptic number.

It is an amenable number.

222120013013 is a deficient number, since it is larger than the sum of its proper divisors (5417561335).

222120013013 is an equidigital number, since it uses as much as digits as its factorization.

222120013013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417561334.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 222120013013 its reverse (310310021222), we get a palindrome (532430034235).

The spelling of 222120013013 in words is "two hundred twenty-two billion, one hundred twenty million, thirteen thousand, thirteen".