202221219999 has 4 divisors (see below), whose sum is σ = 269628293336. Its totient is φ = 134814146664.

The previous prime is 202221219983. The next prime is 202221220009. The reversal of 202221219999 is 999912122202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 202221219999 - 2⁴ = 202221219983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221219979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33703536664 + ... + 33703536669.

It is an arithmetic number, because the mean of its divisors is an integer number (67407073334).

Almost surely, 2^202221219999 is an apocalyptic number.

202221219999 is a deficient number, since it is larger than the sum of its proper divisors (67407073337).

202221219999 is an equidigital number, since it uses as much as digits as its factorization.

202221219999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67407073336.

The product of its (nonzero) digits is 209952, while the sum is 48.

The spelling of 202221219999 in words is "two hundred two billion, two hundred twenty-one million, two hundred nineteen thousand, nine hundred ninety-nine".