200102110221021 has 4 divisors (see below), whose sum is σ = 266802813628032. Its totient is φ = 133401406814012.

The previous prime is 200102110221017. The next prime is 200102110221037. The reversal of 200102110221021 is 120122011201002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200102110221021 - 2² = 200102110221017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200102110221821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33350351703501 + ... + 33350351703506.

It is an arithmetic number, because the mean of its divisors is an integer number (66700703407008).

Almost surely, 2^{200102110221021} is an apocalyptic number.

It is an amenable number.

200102110221021 is a deficient number, since it is larger than the sum of its proper divisors (66700703407011).

200102110221021 is an equidigital number, since it uses as much as digits as its factorization.

200102110221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66700703407010.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200102110221021 its reverse (120122011201002), we get a palindrome (320224121422023).

The spelling of 200102110221021 in words is "two hundred trillion, one hundred two billion, one hundred ten million, two hundred twenty-one thousand, twenty-one".