1112121222112 has 12 divisors (see below), whose sum is σ = 2189488656096. Its totient is φ = 556060611040.

The previous prime is 1112121222103. The next prime is 1112121222131. The reversal of 1112121222112 is 2112221212111.

It is a happy number.

It is a super-2 number, since 2×1112121222112² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1112121222112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17376894064 + ... + 17376894127.

It is an arithmetic number, because the mean of its divisors is an integer number (182457388008).

Almost surely, 2^{1112121222112} is an apocalyptic number.

It is an amenable number.

1112121222112 is a deficient number, since it is larger than the sum of its proper divisors (1077367433984).

1112121222112 is an equidigital number, since it uses as much as digits as its factorization.

1112121222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34753788201 (or 34753788193 counting only the distinct ones).

The product of its digits is 64, while the sum is 19.

Adding to 1112121222112 its reverse (2112221212111), we get a palindrome (3224342434223).

The spelling of 1112121222112 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twelve".