11002220020 has 24 divisors (see below), whose sum is σ = 25205086368. Its totient is φ = 4000807200.

The previous prime is 11002219997. The next prime is 11002220023. The reversal of 11002220020 is 2002220011.

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 = 11002219979 and 11002220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002220023) 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, 25004826 + ... + 25005265.

It is an arithmetic number, because the mean of its divisors is an integer number (1050211932).

Almost surely, 2^11002220020 is an apocalyptic number.

11002220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002220020 is an abundant number, since it is smaller than the sum of its proper divisors (14202866348).

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

11002220020 is a wasteful number, since it uses less digits than its factorization.

11002220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50010111 (or 50010109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 11002220020 its reverse (2002220011), we get a palindrome (13004440031).

Subtracting from 11002220020 its reverse (2002220011), we obtain a palindrome (9000000009).

The spelling of 11002220020 in words is "eleven billion, two million, two hundred twenty thousand, twenty".