11202021020 has 24 divisors (see below), whose sum is σ = 23526271104. Its totient is φ = 4480422336.

The previous prime is 11202020927. The next prime is 11202021043. The reversal of 11202021020 is 2012020211.

It is a happy number.

11202021020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11202020992 and 11202021010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374042 + ... + 402878.

It is an arithmetic number, because the mean of its divisors is an integer number (980261296).

Almost surely, 2^11202021020 is an apocalyptic number.

11202021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11202021020 is an abundant number, since it is smaller than the sum of its proper divisors (12324250084).

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

11202021020 is a wasteful number, since it uses less digits than its factorization.

11202021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48269 (or 48267 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11202021020 its reverse (2012020211), we get a palindrome (13214041231).

The spelling of 11202021020 in words is "eleven billion, two hundred two million, twenty-one thousand, twenty".