222021200222 has 4 divisors (see below), whose sum is σ = 333031800336. Its totient is φ = 111010600110.

The previous prime is 222021200221. The next prime is 222021200257. The reversal of 222021200222 is 222002120222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222002120222 = 2 ⋅111001060111.

It is a self number, because there is not a number n which added to its sum of digits gives 222021200222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021200221) 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 as a sum of consecutive naturals, namely, 55505300054 + ... + 55505300057.

It is an arithmetic number, because the mean of its divisors is an integer number (83257950084).

Almost surely, 2^222021200222 is an apocalyptic number.

222021200222 is a deficient number, since it is larger than the sum of its proper divisors (111010600114).

222021200222 is a wasteful number, since it uses less digits than its factorization.

222021200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111010600113.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 222021200222 its reverse (222002120222), we get a palindrome (444023320444).

The spelling of 222021200222 in words is "two hundred twenty-two billion, twenty-one million, two hundred thousand, two hundred twenty-two".