222112210021 has 8 divisors (see below), whose sum is σ = 240080417024. Its totient is φ = 204270096240.

The previous prime is 222112210013. The next prime is 222112210043. The reversal of 222112210021 is 120012211222.

It is a happy number.

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 222112210021 - 2³ = 222112210013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222112209977 and 222112210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112210081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31519641 + ... + 31526686.

It is an arithmetic number, because the mean of its divisors is an integer number (30010052128).

Almost surely, 2^222112210021 is an apocalyptic number.

It is an amenable number.

222112210021 is a deficient number, since it is larger than the sum of its proper divisors (17968207003).

222112210021 is a wasteful number, since it uses less digits than its factorization.

222112210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63046611.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222112210021 its reverse (120012211222), we get a palindrome (342124421243).

The spelling of 222112210021 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred ten thousand, twenty-one".