11221002020 has 24 divisors (see below), whose sum is σ = 23566382784. Its totient is φ = 4487966816.

The previous prime is 11221002011. The next prime is 11221002047. The reversal of 11221002020 is 2020012211.

It is a happy number.

11221002020 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 = 11221001992 and 11221002010.

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, 257969 + ... + 298311.

It is an arithmetic number, because the mean of its divisors is an integer number (981932616).

Almost surely, 2^11221002020 is an apocalyptic number.

11221002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221002020 is an abundant number, since it is smaller than the sum of its proper divisors (12345380764).

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

11221002020 is a wasteful number, since it uses less digits than its factorization.

11221002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54259 (or 54257 counting only the distinct ones).

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

Adding to 11221002020 its reverse (2020012211), we get a palindrome (13241014231).

The spelling of 11221002020 in words is "eleven billion, two hundred twenty-one million, two thousand, twenty".