111202222220 has 48 divisors (see below), whose sum is σ = 237063159648. Its totient is φ = 43807188480.

The previous prime is 111202222217. The next prime is 111202222259. The reversal of 111202222220 is 22222202111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10018994 + ... + 10030086.

It is an arithmetic number, because the mean of its divisors is an integer number (4938815826).

Almost surely, 2^111202222220 is an apocalyptic number.

111202222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111202222220 is an abundant number, since it is smaller than the sum of its proper divisors (125860937428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111202222220 is a wasteful number, since it uses less digits than its factorization.

111202222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18650 (or 18648 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 111202222220 its reverse (22222202111), we get a palindrome (133424424331).

The spelling of 111202222220 in words is "one hundred eleven billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty".