222322021 has 8 divisors (see below), whose sum is σ = 235709600. Its totient is φ = 209103120.

The previous prime is 222321989. The next prime is 222322031. The reversal of 222322021 is 120223222.

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 222322021 - 2⁵ = 222321989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222321986 and 222322004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222322031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39450 + ... + 44731.

It is an arithmetic number, because the mean of its divisors is an integer number (29463700).

Almost surely, 2^222322021 is an apocalyptic number.

It is an amenable number.

222322021 is a deficient number, since it is larger than the sum of its proper divisors (13387579).

222322021 is a wasteful number, since it uses less digits than its factorization.

222322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84339.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222322021 is about 14910.4668270313. The cubic root of 222322021 is about 605.7975239143.

Adding to 222322021 its reverse (120223222), we get a palindrome (342545243).

The spelling of 222322021 in words is "two hundred twenty-two million, three hundred twenty-two thousand, twenty-one".