1112002011220 has 192 divisors, whose sum is σ = 2501078114304. Its totient is φ = 414626365440.

The previous prime is 1112002011161. The next prime is 1112002011229. The reversal of 1112002011220 is 221102002111.

It is a super-3 number, since 3×1112002011220³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1112002011220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112002011229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 556835262 + ... + 556837258.

It is an arithmetic number, because the mean of its divisors is an integer number (13026448512).

Almost surely, 2^{1112002011220} is an apocalyptic number.

1112002011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112002011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250539057152).

1112002011220 is an abundant number, since it is smaller than the sum of its proper divisors (1389076103084).

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

1112002011220 is a wasteful number, since it uses less digits than its factorization.

1112002011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378 (or 2376 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1112002011220 its reverse (221102002111), we get a palindrome (1333104013331).

The spelling of 1112002011220 in words is "one trillion, one hundred twelve billion, two million, eleven thousand, two hundred twenty".