111021222202 has 12 divisors (see below), whose sum is σ = 183047387418. Its totient is φ = 50464191800.

The previous prime is 111021222133. The next prime is 111021222217. The reversal of 111021222202 is 202222120111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 89909422801 + 21111799401 = 299849^2 + 145299^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229382449 + ... + 229382932.

Almost surely, 2^111021222202 is an apocalyptic number.

111021222202 is a deficient number, since it is larger than the sum of its proper divisors (72026165216).

111021222202 is a wasteful number, since it uses less digits than its factorization.

111021222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458765405 (or 458765394 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111021222202 its reverse (202222120111), we get a palindrome (313243342313).

The spelling of 111021222202 in words is "one hundred eleven billion, twenty-one million, two hundred twenty-two thousand, two hundred two".