11110211222220 has 144 divisors (see below), whose sum is σ = 36768536243712. Its totient is φ = 2693103419520.

The previous prime is 11110211222203. The next prime is 11110211222233. The reversal of 11110211222220 is 2222211201111.

11110211222220 is a `hidden beast` number, since 1 + 1 + 1 + 10 + 211 + 222 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11110211222193 and 11110211222202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19003179 + ... + 19579101.

It is an arithmetic number, because the mean of its divisors is an integer number (255337057248).

Almost surely, 2^{11110211222220} is an apocalyptic number.

11110211222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11110211222220 is an abundant number, since it is smaller than the sum of its proper divisors (25658325021492).

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

11110211222220 is a wasteful number, since it uses less digits than its factorization.

11110211222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585692 (or 585687 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11110211222220 its reverse (2222211201111), we get a palindrome (13332422423331).

The spelling of 11110211222220 in words is "eleven trillion, one hundred ten billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twenty".