11000020012220 has 12 divisors (see below), whose sum is σ = 23100042025704. Its totient is φ = 4400008004880.

The previous prime is 11000020012193. The next prime is 11000020012229. The reversal of 11000020012220 is 2221002000011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000020012229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275000500286 + ... + 275000500325.

It is an arithmetic number, because the mean of its divisors is an integer number (1925003502142).

Almost surely, 2^{11000020012220} is an apocalyptic number.

11000020012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000020012220 is an abundant number, since it is smaller than the sum of its proper divisors (12100022013484).

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

11000020012220 is a wasteful number, since it uses less digits than its factorization.

11000020012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550001000620 (or 550001000618 counting only the distinct ones).

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

Adding to 11000020012220 its reverse (2221002000011), we get a palindrome (13221022012231).

The spelling of 11000020012220 in words is "eleven trillion, twenty million, twelve thousand, two hundred twenty".