201020212010221 has 8 divisors (see below), whose sum is σ = 205663377557120. Its totient is φ = 196429511611008.

The previous prime is 201020212010213. The next prime is 201020212010239. The reversal of 201020212010221 is 122010212020102.

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 201020212010221 - 2³ = 201020212010213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201020212010195 and 201020212010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020212010621) 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, 13116279171 + ... + 13116294496.

It is an arithmetic number, because the mean of its divisors is an integer number (25707922194640).

Almost surely, 2^{201020212010221} is an apocalyptic number.

It is an amenable number.

201020212010221 is a deficient number, since it is larger than the sum of its proper divisors (4643165546899).

201020212010221 is an equidigital number, since it uses as much as digits as its factorization.

201020212010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26232573843.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201020212010221 its reverse (122010212020102), we get a palindrome (323030424030323).

The spelling of 201020212010221 in words is "two hundred one trillion, twenty billion, two hundred twelve million, ten thousand, two hundred twenty-one".