200221220211020 has 48 divisors (see below), whose sum is σ = 428884576377600. Its totient is φ = 78496689484224.

The previous prime is 200221220211017. The next prime is 200221220211029. The reversal of 200221220211020 is 20112022122002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 200221220211020.

It is not an unprimeable number, because it can be changed into a prime (200221220211029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375157514 + ... + 375690833.

It is an arithmetic number, because the mean of its divisors is an integer number (8935095341200).

Almost surely, 2^{200221220211020} is an apocalyptic number.

200221220211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200221220211020 is an abundant number, since it is smaller than the sum of its proper divisors (228663356166580).

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

200221220211020 is a wasteful number, since it uses less digits than its factorization.

200221220211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750848622 (or 750848620 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200221220211020 its reverse (20112022122002), we get a palindrome (220333242333022).

The spelling of 200221220211020 in words is "two hundred trillion, two hundred twenty-one billion, two hundred twenty million, two hundred eleven thousand, twenty".