201020212112001 has 16 divisors (see below), whose sum is σ = 269827068024000. Its totient is φ = 133113424004288.

The previous prime is 201020212111997. The next prime is 201020212112039. The reversal of 201020212112001 is 100211212020102.

It is a cyclic number.

It is not a de Polignac number, because 201020212112001 - 2² = 201020212111997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201020212113001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105070975 + ... + 106967051.

It is an arithmetic number, because the mean of its divisors is an integer number (16864191751500).

Almost surely, 2^{201020212112001} is an apocalyptic number.

It is an amenable number.

201020212112001 is a deficient number, since it is larger than the sum of its proper divisors (68806855911999).

201020212112001 is a wasteful number, since it uses less digits than its factorization.

201020212112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133408.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201020212112001 its reverse (100211212020102), we get a palindrome (301231424132103).

The spelling of 201020212112001 in words is "two hundred one trillion, twenty billion, two hundred twelve million, one hundred twelve thousand, one".