222120202 has 4 divisors (see below), whose sum is σ = 333180306. Its totient is φ = 111060100.

The previous prime is 222120179. The next prime is 222120211. The reversal of 222120202 is 202021222.

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

It can be written as a sum of positive squares in only one way, i.e., 161264601 + 60855601 = 12699^2 + 7801^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 55530049 + ... + 55530052.

Almost surely, 2^222120202 is an apocalyptic number.

222120202 is a deficient number, since it is larger than the sum of its proper divisors (111060104).

222120202 is a wasteful number, since it uses less digits than its factorization.

222120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111060103.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 222120202 is about 14903.6975948923. The cubic root of 222120202 is about 605.6141585658.

Adding to 222120202 its reverse (202021222), we get a palindrome (424141424).

The spelling of 222120202 in words is "two hundred twenty-two million, one hundred twenty thousand, two hundred two".