222021220209 has 8 divisors (see below), whose sum is σ = 313441722720. Its totient is φ = 139307432256.

The previous prime is 222021220193. The next prime is 222021220237. The reversal of 222021220209 is 902022120222.

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

It is not a de Polignac number, because 222021220209 - 2⁴ = 222021220193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222021220279) 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, 2176678579 + ... + 2176678680.

It is an arithmetic number, because the mean of its divisors is an integer number (39180215340).

Almost surely, 2^222021220209 is an apocalyptic number.

It is an amenable number.

222021220209 is a deficient number, since it is larger than the sum of its proper divisors (91420502511).

222021220209 is a wasteful number, since it uses less digits than its factorization.

222021220209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353357279.

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 222021220209 in words is "two hundred twenty-two billion, twenty-one million, two hundred twenty thousand, two hundred nine".