200211221220 has 48 divisors (see below), whose sum is σ = 593567388288. Its totient is φ = 50249090560.

The previous prime is 200211221209. The next prime is 200211221227. The reversal of 200211221220 is 22122112002.

200211221220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 200211221220.

It is not an unprimeable number, because it can be changed into a prime (200211221227) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 98141736 + ... + 98143775.

It is an arithmetic number, because the mean of its divisors is an integer number (12365987256).

Almost surely, 2^200211221220 is an apocalyptic number.

200211221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200211221220 is an abundant number, since it is smaller than the sum of its proper divisors (393356167068).

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

200211221220 is a wasteful number, since it uses less digits than its factorization.

200211221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196285540 (or 196285538 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200211221220 its reverse (22122112002), we get a palindrome (222333333222).

The spelling of 200211221220 in words is "two hundred billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty".