11202020 has 48 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 4135680.

The previous prime is 11202019. The next prime is 11202041. The reversal of 11202020 is 2020211.

11202020 is a modest number, since divided by 2020 gives 1120 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11201989 and 11202007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15221 + ... + 15939.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 2^11202020 is an apocalyptic number.

11202020 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 11202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12700800).

11202020 is an abundant number, since it is smaller than the sum of its proper divisors (14199580).

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

11202020 is a wasteful number, since it uses less digits than its factorization.

11202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 786 counting only the distinct ones).

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

The square root of 11202020 is about 3346.9418877537. The cubic root of 11202020 is about 223.7512385105.

Adding to 11202020 its reverse (2020211), we get a palindrome (13222231).

It can be divided in two parts, 1 and 1202020, that added together give a palindrome (1202021).

The spelling of 11202020 in words is "eleven million, two hundred two thousand, twenty".