20200210102021 has 8 divisors (see below), whose sum is σ = 20501866813464. Its totient is φ = 19899227485440.

The previous prime is 20200210101989. The next prime is 20200210102043. The reversal of 20200210102021 is 12020101200202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6860659149796 + 13339550952225 = 2619286^2 + 3652335^2 .

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 20200210102021 - 2⁵ = 20200210101989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200210101992 and 20200210102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200210102081) 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, 168463336 + ... + 168583201.

It is an arithmetic number, because the mean of its divisors is an integer number (2562733351683).

Almost surely, 2^{20200210102021} is an apocalyptic number.

It is an amenable number.

20200210102021 is a deficient number, since it is larger than the sum of its proper divisors (301656711443).

20200210102021 is an equidigital number, since it uses as much as digits as its factorization.

20200210102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337047431.

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

Adding to 20200210102021 its reverse (12020101200202), we get a palindrome (32220311302223).

The spelling of 20200210102021 in words is "twenty trillion, two hundred billion, two hundred ten million, one hundred two thousand, twenty-one".