200102221221 has 32 divisors (see below), whose sum is σ = 315119040768. Its totient is φ = 110567976960.

The previous prime is 200102221177. The next prime is 200102221229. The reversal of 200102221221 is 122122201002.

200102221221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200102221221 - 2⁹ = 200102220709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200102221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200102221229) 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 31 ways as a sum of consecutive naturals, for example, 931056 + ... + 1125641.

It is an arithmetic number, because the mean of its divisors is an integer number (9847470024).

Almost surely, 2^200102221221 is an apocalyptic number.

200102221221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200102221221 is a deficient number, since it is larger than the sum of its proper divisors (115016819547).

200102221221 is a wasteful number, since it uses less digits than its factorization.

200102221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056861.

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

Adding to 200102221221 its reverse (122122201002), we get a palindrome (322224422223).

The spelling of 200102221221 in words is "two hundred billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty-one".