201112201201220 has 24 divisors (see below), whose sum is σ = 422584201536000. Its totient is φ = 80397532096992.

The previous prime is 201112201201201. The next prime is 201112201201267. The reversal of 201112201201220 is 22102102211102.

It is a super-2 number, since 2×201112201201220² (a number of 29 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2959239140 + ... + 2959307099.

It is an arithmetic number, because the mean of its divisors is an integer number (17607675064000).

Almost surely, 2^{201112201201220} is an apocalyptic number.

201112201201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201112201201220 is an abundant number, since it is smaller than the sum of its proper divisors (221472000334780).

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

201112201201220 is a wasteful number, since it uses less digits than its factorization.

201112201201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918547947 (or 5918547945 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201112201201220 its reverse (22102102211102), we get a palindrome (223214303412322).

The spelling of 201112201201220 in words is "two hundred one trillion, one hundred twelve billion, two hundred one million, two hundred one thousand, two hundred twenty".