11020100220 has 120 divisors (see below), whose sum is σ = 34610208864. Its totient is φ = 2935315584.

The previous prime is 11020100183. The next prime is 11020100227. The reversal of 11020100220 is 2200102011.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020100227) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1611729 + ... + 1618551.

Almost surely, 2^11020100220 is an apocalyptic number.

11020100220 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 11020100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17305104432).

11020100220 is an abundant number, since it is smaller than the sum of its proper divisors (23590108644).

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

11020100220 is a wasteful number, since it uses less digits than its factorization.

11020100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7841 (or 7830 counting only the distinct ones).

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

Adding to 11020100220 its reverse (2200102011), we get a palindrome (13220202231).

The spelling of 11020100220 in words is "eleven billion, twenty million, one hundred thousand, two hundred twenty".