111022212212 has 12 divisors (see below), whose sum is σ = 194298552420. Its totient is φ = 55508340096.

The previous prime is 111022212209. The next prime is 111022212221. The reversal of 111022212212 is 212212220111.

It can be written as a sum of positive squares in 2 ways, for example, as 89010335716 + 22011876496 = 298346^2 + 148364^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599843 + ... + 762794.

It is an arithmetic number, because the mean of its divisors is an integer number (16191546035).

Almost surely, 2^111022212212 is an apocalyptic number.

It is an amenable number.

111022212212 is a deficient number, since it is larger than the sum of its proper divisors (83276340208).

111022212212 is a wasteful number, since it uses less digits than its factorization.

111022212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383010 (or 1383008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111022212212 its reverse (212212220111), we get a palindrome (323234432323).

The spelling of 111022212212 in words is "one hundred eleven billion, twenty-two million, two hundred twelve thousand, two hundred twelve".