20200210100221 has 4 divisors (see below), whose sum is σ = 20205359278272. Its totient is φ = 20195060922172.

The previous prime is 20200210100177. The next prime is 20200210100237. The reversal of 20200210100221 is 12200101200202.

It is a happy number.

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 20200210100221 - 2¹⁹ = 20200209575933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200210100821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2574583141 + ... + 2574590986.

It is an arithmetic number, because the mean of its divisors is an integer number (5051339819568).

Almost surely, 2^{20200210100221} is an apocalyptic number.

It is an amenable number.

20200210100221 is a deficient number, since it is larger than the sum of its proper divisors (5149178051).

20200210100221 is an equidigital number, since it uses as much as digits as its factorization.

20200210100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149178050.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20200210100221 its reverse (12200101200202), we get a palindrome (32400311300423).

The spelling of 20200210100221 in words is "twenty trillion, two hundred billion, two hundred ten million, one hundred thousand, two hundred twenty-one".