1112211100220 has 96 divisors (see below), whose sum is σ = 2565414948096. Its totient is φ = 401681548800.

The previous prime is 1112211100201. The next prime is 1112211100241. The reversal of 1112211100220 is 220011122111.

It is a junction number, because it is equal to n+sod(n) for n = 1112211100195 and 1112211100204.

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 31 ways as a sum of consecutive naturals, for example, 18949439 + ... + 19008041.

It is an arithmetic number, because the mean of its divisors is an integer number (26723072376).

Almost surely, 2^{1112211100220} is an apocalyptic number.

1112211100220 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 1112211100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282707474048).

1112211100220 is an abundant number, since it is smaller than the sum of its proper divisors (1453203847876).

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

1112211100220 is a wasteful number, since it uses less digits than its factorization.

1112211100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59211 (or 59209 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1112211100220 its reverse (220011122111), we get a palindrome (1332222222331).

The spelling of 1112211100220 in words is "one trillion, one hundred twelve billion, two hundred eleven million, one hundred thousand, two hundred twenty".