11221011111020 has 48 divisors (see below), whose sum is σ = 24035051637408. Its totient is φ = 4399223823360.

The previous prime is 11221011111001. The next prime is 11221011111083. The reversal of 11221011111020 is 2011111012211.

It is a super-5 number, since 5×11221011111020⁵ (a number of 66 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 11221011110986 and 11221011111004.

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, 15904829 + ... + 16595348.

It is an arithmetic number, because the mean of its divisors is an integer number (500730242446).

Almost surely, 2^{11221011111020} is an apocalyptic number.

11221011111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221011111020 is an abundant number, since it is smaller than the sum of its proper divisors (12814040526388).

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

11221011111020 is a wasteful number, since it uses less digits than its factorization.

11221011111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32500530 (or 32500528 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11221011111020 its reverse (2011111012211), we get a palindrome (13232122123231).

The spelling of 11221011111020 in words is "eleven trillion, two hundred twenty-one billion, eleven million, one hundred eleven thousand, twenty".