22220220122221 has 8 divisors (see below), whose sum is σ = 24302554380000. Its totient is φ = 20148271572240.

The previous prime is 22220220122197. The next prime is 22220220122273. The reversal of 22220220122221 is 12222102202222.

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

It is a cyclic number.

It is not a de Polignac number, because 22220220122221 - 2¹⁵ = 22220220089453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22220220122192 and 22220220122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220220123221) 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, 2596422471 + ... + 2596431028.

It is an arithmetic number, because the mean of its divisors is an integer number (3037819297500).

Almost surely, 2^{22220220122221} is an apocalyptic number.

It is an amenable number.

22220220122221 is a deficient number, since it is larger than the sum of its proper divisors (2082334257779).

22220220122221 is a wasteful number, since it uses less digits than its factorization.

22220220122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5192853899.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22220220122221 its reverse (12222102202222), we get a palindrome (34442322324443).

The spelling of 22220220122221 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty million, one hundred twenty-two thousand, two hundred twenty-one".