2011224004220 has 12 divisors (see below), whose sum is σ = 4223570408904. Its totient is φ = 804489601680.

The previous prime is 2011224004219. The next prime is 2011224004249. The reversal of 2011224004220 is 224004221102.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 100561200211 = 2011224004220 / (2 + 0 + 1 + 1 + 2 + 2 + 4 + 0 + 0 + 4 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2011224004192 and 2011224004201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50280600086 + ... + 50280600125.

It is an arithmetic number, because the mean of its divisors is an integer number (351964200742).

Almost surely, 2^{2011224004220} is an apocalyptic number.

2011224004220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011224004220 is an abundant number, since it is smaller than the sum of its proper divisors (2212346404684).

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

2011224004220 is a wasteful number, since it uses less digits than its factorization.

2011224004220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100561200220 (or 100561200218 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2011224004220 its reverse (224004221102), we get a palindrome (2235228225322).

The spelling of 2011224004220 in words is "two trillion, eleven billion, two hundred twenty-four million, four thousand, two hundred twenty".