11220001122020 has 96 divisors (see below), whose sum is σ = 25085855402496. Its totient is φ = 4206546432000.

The previous prime is 11220001122019. The next prime is 11220001122041. The reversal of 11220001122020 is 2022110002211.

It is a junction number, because it is equal to n+sod(n) for n = 11220001121986 and 11220001122004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3261785 + ... + 5751455.

It is an arithmetic number, because the mean of its divisors is an integer number (261310993776).

Almost surely, 2^{11220001122020} is an apocalyptic number.

11220001122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11220001122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12542927701248).

11220001122020 is an abundant number, since it is smaller than the sum of its proper divisors (13865854280476).

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

11220001122020 is a wasteful number, since it uses less digits than its factorization.

11220001122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489901 (or 2489899 counting only the distinct ones).

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

Adding to 11220001122020 its reverse (2022110002211), we get a palindrome (13242111124231).

The spelling of 11220001122020 in words is "eleven trillion, two hundred twenty billion, one million, one hundred twenty-two thousand, twenty".