11220111221202 has 120 divisors (see below), whose sum is σ = 27244198404540. Its totient is φ = 3333291212160.

The previous prime is 11220111221167. The next prime is 11220111221227. The reversal of 11220111221202 is 20212211102211.

11220111221202 is a `hidden beast` number, since 11 + 220 + 1 + 11 + 221 + 202 = 666.

It can be written as a sum of positive squares in 10 ways, for example, as 2144587442481 + 9075523778721 = 1464441^2 + 3012561^2 .

It is a super-2 number, since 2×11220111221202² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 14532552 + ... + 15285132.

Almost surely, 2^{11220111221202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11220111221202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13622099202270).

11220111221202 is an abundant number, since it is smaller than the sum of its proper divisors (16024087183338).

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

11220111221202 is an equidigital number, since it uses as much as digits as its factorization.

11220111221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752670 (or 752628 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11220111221202 its reverse (20212211102211), we get a palindrome (31432322323413).

The spelling of 11220111221202 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, two hundred two".