22222321021213 has 8 divisors (see below), whose sum is σ = 23529567935808. Its totient is φ = 20915079835584.

The previous prime is 22222321021193. The next prime is 22222321021253. The reversal of 22222321021213 is 31212012322222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22222321021213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222321021253) 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, 8536170 + ... + 10831012.

It is an arithmetic number, because the mean of its divisors is an integer number (2941195991976).

Almost surely, 2^{22222321021213} is an apocalyptic number.

It is an amenable number.

22222321021213 is a deficient number, since it is larger than the sum of its proper divisors (1307246914595).

22222321021213 is a wasteful number, since it uses less digits than its factorization.

22222321021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864483.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 22222321021213 its reverse (31212012322222), we get a palindrome (53434333343435).

The spelling of 22222321021213 in words is "twenty-two trillion, two hundred twenty-two billion, three hundred twenty-one million, twenty-one thousand, two hundred thirteen".