1111021121112 has 64 divisors (see below), whose sum is σ = 3341416915200. Its totient is φ = 300727520640.

The previous prime is 1111021121083. The next prime is 1111021121141. The reversal of 1111021121112 is 2111211201111.

It is an interprime number because it is at equal distance from previous prime (1111021121083) and next prime (1111021121141).

It is a junction number, because it is equal to n+sod(n) for n = 1111021121091 and 1111021121100.

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 15 ways as a sum of consecutive naturals, for example, 174028939 + ... + 174035322.

It is an arithmetic number, because the mean of its divisors is an integer number (52209639300).

Almost surely, 2^{1111021121112} is an apocalyptic number.

1111021121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111021121112 is an abundant number, since it is smaller than the sum of its proper divisors (2230395794088).

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

1111021121112 is a wasteful number, since it uses less digits than its factorization.

1111021121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348064296 (or 348064292 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1111021121112 its reverse (2111211201111), we get a palindrome (3222232322223).

The spelling of 1111021121112 in words is "one trillion, one hundred eleven billion, twenty-one million, one hundred twenty-one thousand, one hundred twelve".