11220102220020 has 96 divisors (see below), whose sum is σ = 31821321100800. Its totient is φ = 2953470034944.

The previous prime is 11220102220001. The next prime is 11220102220049. The reversal of 11220102220020 is 2002220102211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 20380536 + ... + 20923824.

It is an arithmetic number, because the mean of its divisors is an integer number (331472094800).

Almost surely, 2^{11220102220020} is an apocalyptic number.

11220102220020 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 11220102220020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15910660550400).

11220102220020 is an abundant number, since it is smaller than the sum of its proper divisors (20601218880780).

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

11220102220020 is a wasteful number, since it uses less digits than its factorization.

11220102220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547737 (or 547735 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11220102220020 its reverse (2002220102211), we get a palindrome (13222322322231).

The spelling of 11220102220020 in words is "eleven trillion, two hundred twenty billion, one hundred two million, two hundred twenty thousand, twenty".