11220012210020 has 24 divisors (see below), whose sum is σ = 23584233061368. Its totient is φ = 4483774899200.

The previous prime is 11220012210019. The next prime is 11220012210023. The reversal of 11220012210020 is 2001221002211.

It can be written as a sum of positive squares in 4 ways, for example, as 4561744158976 + 6658268051044 = 2135824^2 + 2580362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11220012209977 and 11220012210004.

It is not an unprimeable number, because it can be changed into a prime (11220012210023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264352301 + ... + 264394740.

It is an arithmetic number, because the mean of its divisors is an integer number (982676377557).

Almost surely, 2^{11220012210020} is an apocalyptic number.

11220012210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220012210020 is an abundant number, since it is smaller than the sum of its proper divisors (12364220851348).

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

11220012210020 is a wasteful number, since it uses less digits than its factorization.

11220012210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528748111 (or 528748109 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11220012210020 its reverse (2001221002211), we get a palindrome (13221233212231).

The spelling of 11220012210020 in words is "eleven trillion, two hundred twenty billion, twelve million, two hundred ten thousand, twenty".