201021220201 has 8 divisors (see below), whose sum is σ = 201591544608. Its totient is φ = 200451240000.

The previous prime is 201021220129. The next prime is 201021220207. The reversal of 201021220201 is 102022120102.

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 201021220201 - 2⁷ = 201021220073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201021220207) 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, 1107006 + ... + 1275736.

It is an arithmetic number, because the mean of its divisors is an integer number (25198943076).

Almost surely, 2^201021220201 is an apocalyptic number.

It is an amenable number.

201021220201 is a deficient number, since it is larger than the sum of its proper divisors (570324407).

201021220201 is a wasteful number, since it uses less digits than its factorization.

201021220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172103.

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

Adding to 201021220201 its reverse (102022120102), we get a palindrome (303043340303).

The spelling of 201021220201 in words is "two hundred one billion, twenty-one million, two hundred twenty thousand, two hundred one".