221223200222 has 4 divisors (see below), whose sum is σ = 331834800336. Its totient is φ = 110611600110.

The previous prime is 221223200221. The next prime is 221223200239. The reversal of 221223200222 is 222002322122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221223200194 and 221223200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221223200221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55305800054 + ... + 55305800057.

It is an arithmetic number, because the mean of its divisors is an integer number (82958700084).

Almost surely, 2^221223200222 is an apocalyptic number.

221223200222 is a deficient number, since it is larger than the sum of its proper divisors (110611600114).

221223200222 is a wasteful number, since it uses less digits than its factorization.

221223200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110611600113.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 221223200222 its reverse (222002322122), we get a palindrome (443225522344).

The spelling of 221223200222 in words is "two hundred twenty-one billion, two hundred twenty-three million, two hundred thousand, two hundred twenty-two".