11120111201220 has 192 divisors, whose sum is σ = 36502448726016. Its totient is φ = 2476332334080.

The previous prime is 11120111201201. The next prime is 11120111201233. The reversal of 11120111201220 is 2210211102111.

It is a happy number.

It is a super-2 number, since 2×11120111201220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11120111201220.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12074809 + ... + 12963071.

It is an arithmetic number, because the mean of its divisors is an integer number (190116920448).

Almost surely, 2^{11120111201220} is an apocalyptic number.

11120111201220 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 11120111201220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18251224363008).

11120111201220 is an abundant number, since it is smaller than the sum of its proper divisors (25382337524796).

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

11120111201220 is a wasteful number, since it uses less digits than its factorization.

11120111201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889050 (or 889048 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11120111201220 its reverse (2210211102111), we get a palindrome (13330322303331).

The spelling of 11120111201220 in words is "eleven trillion, one hundred twenty billion, one hundred eleven million, two hundred one thousand, two hundred twenty".