111120221112212 has 48 divisors (see below), whose sum is σ = 222705922818960. Its totient is φ = 48058633746432.

The previous prime is 111120221112209. The next prime is 111120221112221. The reversal of 111120221112212 is 212211122021111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 936025290256 + 110184195821956 = 967484^2 + 10496866^2 .

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 274255223 + ... + 274660094.

It is an arithmetic number, because the mean of its divisors is an integer number (4639706725395).

Almost surely, 2^{111120221112212} is an apocalyptic number.

It is an amenable number.

111120221112212 is an abundant number, since it is smaller than the sum of its proper divisors (111585701706748).

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

111120221112212 is a wasteful number, since it uses less digits than its factorization.

111120221112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548915580 (or 548915578 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 111120221112212 its reverse (212211122021111), we get a palindrome (323331343133323).

The spelling of 111120221112212 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twelve".