11202220221020 has 24 divisors (see below), whose sum is σ = 23524738841184. Its totient is φ = 4480873540416.

The previous prime is 11202220221011. The next prime is 11202220221083. The reversal of 11202220221020 is 2012202220211.

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 11202220221020.

It is a congruent number.

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, 7145057 + ... + 8570663.

It is an arithmetic number, because the mean of its divisors is an integer number (980197451716).

Almost surely, 2^{11202220221020} is an apocalyptic number.

11202220221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11202220221020 is an abundant number, since it is smaller than the sum of its proper divisors (12322518620164).

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

11202220221020 is a wasteful number, since it uses less digits than its factorization.

11202220221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818509 (or 1818507 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11202220221020 its reverse (2012202220211), we get a palindrome (13214422441231).

The spelling of 11202220221020 in words is "eleven trillion, two hundred two billion, two hundred twenty million, two hundred twenty-one thousand, twenty".