11221211102020 has 48 divisors (see below), whose sum is σ = 23798723352768. Its totient is φ = 4443881961600.

The previous prime is 11221211101979. The next prime is 11221211102051. The reversal of 11221211102020 is 2020111212211.

It is a junction number, because it is equal to n+sod(n) for n = 11221211101985 and 11221211102003.

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 15 ways as a sum of consecutive naturals, for example, 65983219 + ... + 66153061.

It is an arithmetic number, because the mean of its divisors is an integer number (495806736516).

Almost surely, 2^{11221211102020} is an apocalyptic number.

11221211102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221211102020 is an abundant number, since it is smaller than the sum of its proper divisors (12577512250748).

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

11221211102020 is a wasteful number, since it uses less digits than its factorization.

11221211102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202660 (or 202658 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11221211102020 its reverse (2020111212211), we get a palindrome (13241322314231).

The spelling of 11221211102020 in words is "eleven trillion, two hundred twenty-one billion, two hundred eleven million, one hundred two thousand, twenty".