201220200001 has 8 divisors (see below), whose sum is σ = 213814896264. Its totient is φ = 188709749760.

The previous prime is 201220199987. The next prime is 201220200047. The reversal of 201220200001 is 100002022102.

It can be written as a sum of positive squares in 4 ways, for example, as 88877919376 + 112342280625 = 298124^2 + 335175^2 .

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 201220200001 - 2¹⁵ = 201220167233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201280200001) 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, 21056580 + ... + 21066133.

It is an arithmetic number, because the mean of its divisors is an integer number (26726862033).

Almost surely, 2^201220200001 is an apocalyptic number.

It is an amenable number.

201220200001 is a deficient number, since it is larger than the sum of its proper divisors (12594696263).

201220200001 is a wasteful number, since it uses less digits than its factorization.

201220200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42123011.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 201220200001 its reverse (100002022102), we get a palindrome (301222222103).

The spelling of 201220200001 in words is "two hundred one billion, two hundred twenty million, two hundred thousand, one".