11020020201220 has 24 divisors (see below), whose sum is σ = 23888559921408. Its totient is φ = 4265814271200.

The previous prime is 11020020201173. The next prime is 11020020201263. The reversal of 11020020201220 is 2210202002011.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11020020201220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8887112446 + ... + 8887113685.

It is an arithmetic number, because the mean of its divisors is an integer number (995356663392).

Almost surely, 2^{11020020201220} is an apocalyptic number.

11020020201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020020201220 is an abundant number, since it is smaller than the sum of its proper divisors (12868539720188).

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

11020020201220 is a wasteful number, since it uses less digits than its factorization.

11020020201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17774226171 (or 17774226169 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11020020201220 its reverse (2210202002011), we get a palindrome (13230222203231).

The spelling of 11020020201220 in words is "eleven trillion, twenty billion, twenty million, two hundred one thousand, two hundred twenty".