11010020220 has 144 divisors (see below), whose sum is σ = 34003307520. Its totient is φ = 2882994048.

The previous prime is 11010020179. The next prime is 11010020237. The reversal of 11010020220 is 2202001011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4328269 + ... + 4330811.

It is an arithmetic number, because the mean of its divisors is an integer number (236134080).

Almost surely, 2^11010020220 is an apocalyptic number.

11010020220 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 11010020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17001653760).

11010020220 is an abundant number, since it is smaller than the sum of its proper divisors (22993287300).

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

11010020220 is a wasteful number, since it uses less digits than its factorization.

11010020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984 (or 2979 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11010020220 its reverse (2202001011), we get a palindrome (13212021231).

The spelling of 11010020220 in words is "eleven billion, ten million, twenty thousand, two hundred twenty".