111220202212 has 24 divisors (see below), whose sum is σ = 235525135104. Its totient is φ = 44861930112.

The previous prime is 111220202189. The next prime is 111220202237. The reversal of 111220202212 is 212202022111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116827468 + ... + 116828419.

It is an arithmetic number, because the mean of its divisors is an integer number (9813547296).

Almost surely, 2^111220202212 is an apocalyptic number.

It is an amenable number.

111220202212 is an abundant number, since it is smaller than the sum of its proper divisors (124304932892).

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

111220202212 is a wasteful number, since it uses less digits than its factorization.

111220202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233655915 (or 233655913 counting only the distinct ones).

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

Adding to 111220202212 its reverse (212202022111), we get a palindrome (323422224323).

The spelling of 111220202212 in words is "one hundred eleven billion, two hundred twenty million, two hundred two thousand, two hundred twelve".