11022020 has 24 divisors (see below), whose sum is σ = 23355864. Its totient is φ = 4368896.

The previous prime is 11021993. The next prime is 11022023. The reversal of 11022020 is 2022011.

It can be written as a sum of positive squares in 4 ways, for example, as 158404 + 10863616 = 398^2 + 3296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11021989 and 11022007.

It is not an unprimeable number, because it can be changed into a prime (11022023) 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, 179 + ... + 4698.

It is an arithmetic number, because the mean of its divisors is an integer number (973161).

Almost surely, 2^11022020 is an apocalyptic number.

11022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11022020 is an abundant number, since it is smaller than the sum of its proper divisors (12333844).

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

11022020 is a wasteful number, since it uses less digits than its factorization.

11022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999 (or 4997 counting only the distinct ones).

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

The square root of 11022020 is about 3319.9427705911. The cubic root of 11022020 is about 222.5463102696.

Adding to 11022020 its reverse (2022011), we get a palindrome (13044031).

Subtracting from 11022020 its reverse (2022011), we obtain a palindrome (9000009).

The spelling of 11022020 in words is "eleven million, twenty-two thousand, twenty".