220220020011220 has 12 divisors (see below), whose sum is σ = 462462042023604. Its totient is φ = 88088008004480.

The previous prime is 220220020011197. The next prime is 220220020011241. The reversal of 220220020011220 is 22110020022022.

It can be written as a sum of positive squares in 2 ways, for example, as 29415415265604 + 190804604745616 = 5423598^2 + 13813204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220220020011194 and 220220020011203.

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 3 ways as a sum of consecutive naturals, for example, 5505500500261 + ... + 5505500500300.

It is an arithmetic number, because the mean of its divisors is an integer number (38538503501967).

Almost surely, 2^{220220020011220} is an apocalyptic number.

220220020011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220220020011220 is an abundant number, since it is smaller than the sum of its proper divisors (242242022012384).

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

220220020011220 is a wasteful number, since it uses less digits than its factorization.

220220020011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011001000570 (or 11011001000568 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220220020011220 its reverse (22110020022022), we get a palindrome (242330040033242).

The spelling of 220220020011220 in words is "two hundred twenty trillion, two hundred twenty billion, twenty million, eleven thousand, two hundred twenty".