222222110221021 has 8 divisors (see below), whose sum is σ = 223550299078400. Its totient is φ = 220896882767232.

The previous prime is 222222110221019. The next prime is 222222110221091. The reversal of 222222110221021 is 120122011222222.

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 222222110221021 - 2¹ = 222222110221019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222222110220983 and 222222110221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222110221091) 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, 740200371 + ... + 740500528.

It is an arithmetic number, because the mean of its divisors is an integer number (27943787384800).

Almost surely, 2^{222222110221021} is an apocalyptic number.

It is an amenable number.

222222110221021 is a deficient number, since it is larger than the sum of its proper divisors (1328188857379).

222222110221021 is a wasteful number, since it uses less digits than its factorization.

222222110221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480701795.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222222110221021 its reverse (120122011222222), we get a palindrome (342344121443243).

The spelling of 222222110221021 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred ten million, two hundred twenty-one thousand, twenty-one".