12200211021220 has 12 divisors (see below), whose sum is σ = 25620443144604. Its totient is φ = 4880084408480.

The previous prime is 12200211021217. The next prime is 12200211021247. The reversal of 12200211021220 is 2212011200221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7748963420416 + 4451247600804 = 2783696^2 + 2109798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12200211021194 and 12200211021203.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 305005275511 + ... + 305005275550.

It is an arithmetic number, because the mean of its divisors is an integer number (2135036928717).

Almost surely, 2^{12200211021220} is an apocalyptic number.

12200211021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200211021220 is an abundant number, since it is smaller than the sum of its proper divisors (13420232123384).

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

12200211021220 is a wasteful number, since it uses less digits than its factorization.

12200211021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610010551070 (or 610010551068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12200211021220 its reverse (2212011200221), we get a palindrome (14412222221441).

The spelling of 12200211021220 in words is "twelve trillion, two hundred billion, two hundred eleven million, twenty-one thousand, two hundred twenty".