11221000220020 has 24 divisors (see below), whose sum is σ = 23895989203968. Its totient is φ = 4425183184800.

The previous prime is 11221000219987. The next prime is 11221000220057. The reversal of 11221000220020 is 2002200012211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3951054996 + ... + 3951057835.

It is an arithmetic number, because the mean of its divisors is an integer number (995666216832).

Almost surely, 2^{11221000220020} is an apocalyptic number.

11221000220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221000220020 is an abundant number, since it is smaller than the sum of its proper divisors (12674988983948).

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

11221000220020 is a wasteful number, since it uses less digits than its factorization.

11221000220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902112911 (or 7902112909 counting only the distinct ones).

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

Adding to 11221000220020 its reverse (2002200012211), we get a palindrome (13223200232231).

The spelling of 11221000220020 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty thousand, twenty".