11011223120220 has 36 divisors (see below), whose sum is σ = 33400710131880. Its totient is φ = 2936326165344.

The previous prime is 11011223120213. The next prime is 11011223120231. The reversal of 11011223120220 is 2202132211011.

11011223120220 is a `hidden beast` number, since 1 + 10 + 1 + 122 + 312 + 0 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 11011223120193 and 11011223120202.

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 11 ways as a sum of consecutive naturals, for example, 30586730710 + ... + 30586731069.

Almost surely, 2^{11011223120220} is an apocalyptic number.

11011223120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011223120220 is an abundant number, since it is smaller than the sum of its proper divisors (22389487011660).

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

11011223120220 is a wasteful number, since it uses less digits than its factorization.

11011223120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61173461794 (or 61173461789 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11011223120220 its reverse (2202132211011), we get a palindrome (13213355331231).

The spelling of 11011223120220 in words is "eleven trillion, eleven billion, two hundred twenty-three million, one hundred twenty thousand, two hundred twenty".