210020221103021 has 8 divisors (see below), whose sum is σ = 240537077951040. Its totient is φ = 179631856284768.

The previous prime is 210020221103003. The next prime is 210020221103041. The reversal of 210020221103021 is 120301122020012.

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 210020221103021 - 2⁶ = 210020221102957 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 (210020221103041) 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, 32123003936 + ... + 32123010473.

It is an arithmetic number, because the mean of its divisors is an integer number (30067134743880).

Almost surely, 2^{210020221103021} is an apocalyptic number.

It is an amenable number.

210020221103021 is a deficient number, since it is larger than the sum of its proper divisors (30516856848019).

210020221103021 is an equidigital number, since it uses as much as digits as its factorization.

210020221103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64246014883.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 210020221103021 its reverse (120301122020012), we get a palindrome (330321343123033).

The spelling of 210020221103021 in words is "two hundred ten trillion, twenty billion, two hundred twenty-one million, one hundred three thousand, twenty-one".