1112222121112 has 32 divisors (see below), whose sum is σ = 2096412796800. Its totient is φ = 553182626304.

The previous prime is 1112222121107. The next prime is 1112222121113. The reversal of 1112222121112 is 2111212222111.

It is a happy number.

It is a super-2 number, since 2×1112222121112² (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 1112222121112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112222121113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2034064 + ... + 2522272.

It is an arithmetic number, because the mean of its divisors is an integer number (65512899900).

Almost surely, 2^{1112222121112} is an apocalyptic number.

It is an amenable number.

1112222121112 is a deficient number, since it is larger than the sum of its proper divisors (984190675688).

1112222121112 is a wasteful number, since it uses less digits than its factorization.

1112222121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489715 (or 489711 counting only the distinct ones).

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

Adding to 1112222121112 its reverse (2111212222111), we get a palindrome (3223434343223).

The spelling of 1112222121112 in words is "one trillion, one hundred twelve billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".