11221020013120 has 112 divisors (see below), whose sum is σ = 27598172083200. Its totient is φ = 4341072476160.

The previous prime is 11221020013079. The next prime is 11221020013121. The reversal of 11221020013120 is 2131002012211.

It is a super-2 number, since 2×11221020013120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 11221020013094 and 11221020013103.

It is not an unprimeable number, because it can be changed into a prime (11221020013121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16622341 + ... + 17284219.

Almost surely, 2^{11221020013120} is an apocalyptic number.

11221020013120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11221020013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13799086041600).

11221020013120 is an abundant number, since it is smaller than the sum of its proper divisors (16377152070080).

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

11221020013120 is a wasteful number, since it uses less digits than its factorization.

11221020013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663636 (or 663626 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11221020013120 its reverse (2131002012211), we get a palindrome (13352022025331).

The spelling of 11221020013120 in words is "eleven trillion, two hundred twenty-one billion, twenty million, thirteen thousand, one hundred twenty".