11011022020 has 24 divisors (see below), whose sum is σ = 23352092568. Its totient is φ = 4360800000.

The previous prime is 11011021991. The next prime is 11011022023. The reversal of 11011022020 is 2022011011.

It can be written as a sum of positive squares in 4 ways, for example, as 1809991936 + 9201030084 = 42544^2 + 95922^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11011021988 and 11011022006.

It is not an unprimeable number, because it can be changed into a prime (11011022023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2723481 + ... + 2727520.

It is an arithmetic number, because the mean of its divisors is an integer number (973003857).

Almost surely, 2^11011022020 is an apocalyptic number.

11011022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011022020 is an abundant number, since it is smaller than the sum of its proper divisors (12341070548).

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

11011022020 is a wasteful number, since it uses less digits than its factorization.

11011022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451111 (or 5451109 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11011022020 its reverse (2022011011), we get a palindrome (13033033031).

The spelling of 11011022020 in words is "eleven billion, eleven million, twenty-two thousand, twenty".