12202220111220 has 72 divisors (see below), whose sum is σ = 37013730868296. Its totient is φ = 3253896364032.

The previous prime is 12202220111219. The next prime is 12202220111227. The reversal of 12202220111220 is 2211102220221.

It is a happy number.

12202220111220 is a `hidden beast` number, since 1 + 220 + 2 + 220 + 1 + 1 + 1 + 220 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3087484751376 + 9114735359844 = 1757124^2 + 3019062^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12202220111193 and 12202220111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202220111227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26576724 + ... + 27031956.

It is an arithmetic number, because the mean of its divisors is an integer number (514079595393).

Almost surely, 2^{12202220111220} is an apocalyptic number.

12202220111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202220111220 is an abundant number, since it is smaller than the sum of its proper divisors (24811510757076).

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

12202220111220 is a wasteful number, since it uses less digits than its factorization.

12202220111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604161 (or 604156 counting only the distinct ones).

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

Adding to 12202220111220 its reverse (2211102220221), we get a palindrome (14413322331441).

The spelling of 12202220111220 in words is "twelve trillion, two hundred two billion, two hundred twenty million, one hundred eleven thousand, two hundred twenty".