200220021221 has 16 divisors (see below), whose sum is σ = 219169843200. Its totient is φ = 181395440880.

The previous prime is 200220021193. The next prime is 200220021223. The reversal of 200220021221 is 122120022002.

200220021221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 200220021221 - 2¹⁰ = 200220020197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200220021196 and 200220021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220021223) 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, 7571180 + ... + 7597578.

It is an arithmetic number, because the mean of its divisors is an integer number (13698115200).

Almost surely, 2^200220021221 is an apocalyptic number.

It is an amenable number.

200220021221 is a deficient number, since it is larger than the sum of its proper divisors (18949821979).

200220021221 is a wasteful number, since it uses less digits than its factorization.

200220021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28744.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200220021221 its reverse (122120022002), we get a palindrome (322340043223).

It can be divided in two parts, 20022002 and 1221, that multiplied together give a palindrome (24446864442).

The spelling of 200220021221 in words is "two hundred billion, two hundred twenty million, twenty-one thousand, two hundred twenty-one".