20020210100221 has 8 divisors (see below), whose sum is σ = 20359613383200. Its totient is φ = 19680809406960.

The previous prime is 20020210100213. The next prime is 20020210100309. The reversal of 20020210100221 is 12200101202002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20020210100221 - 2³ = 20020210100213 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 (20020210100921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21064686 + ... + 21994576.

It is an arithmetic number, because the mean of its divisors is an integer number (2544951672900).

Almost surely, 2^{20020210100221} is an apocalyptic number.

It is an amenable number.

20020210100221 is a deficient number, since it is larger than the sum of its proper divisors (339403282979).

20020210100221 is an equidigital number, since it uses as much as digits as its factorization.

20020210100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294859.

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

Adding to 20020210100221 its reverse (12200101202002), we get a palindrome (32220311302223).

The spelling of 20020210100221 in words is "twenty trillion, twenty billion, two hundred ten million, one hundred thousand, two hundred twenty-one".