11220201202212 has 72 divisors (see below), whose sum is σ = 28645336694520. Its totient is φ = 3702733171200.

The previous prime is 11220201202187. The next prime is 11220201202289. The reversal of 11220201202212 is 21220210202211.

It is a happy number.

11220201202212 is a `hidden beast` number, since 1 + 1 + 220 + 201 + 20 + 221 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1168422636096 + 10051778566116 = 1080936^2 + 3170454^2 .

It is a super-2 number, since 2×11220201202212² (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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46613464 + ... + 46853552.

It is an arithmetic number, because the mean of its divisors is an integer number (397851898535).

Almost surely, 2^{11220201202212} is an apocalyptic number.

11220201202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220201202212 is an abundant number, since it is smaller than the sum of its proper divisors (17425135492308).

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

11220201202212 is a wasteful number, since it uses less digits than its factorization.

11220201202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253053 (or 253048 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11220201202212 its reverse (21220210202211), we get a palindrome (32440411404423).

It can be divided in two parts, 1122020 and 1202212, that added together give a palindrome (2324232).

The spelling of 11220201202212 in words is "eleven trillion, two hundred twenty billion, two hundred one million, two hundred two thousand, two hundred twelve".