201001212102021 has 16 divisors (see below), whose sum is σ = 272813063065920. Its totient is φ = 131599568714240.

The previous prime is 201001212102001. The next prime is 201001212102029. The reversal of 201001212102021 is 120201212100102.

It is a cyclic number.

It is not a de Polignac number, because 201001212102021 - 2⁹ = 201001212101509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001212102029) 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, 560334060 + ... + 560692661.

It is an arithmetic number, because the mean of its divisors is an integer number (17050816441620).

Almost surely, 2^{201001212102021} is an apocalyptic number.

It is an amenable number.

201001212102021 is a deficient number, since it is larger than the sum of its proper divisors (71811850963899).

201001212102021 is a wasteful number, since it uses less digits than its factorization.

201001212102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121027796.

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

Adding to 201001212102021 its reverse (120201212100102), we get a palindrome (321202424202123).

The spelling of 201001212102021 in words is "two hundred one trillion, one billion, two hundred twelve million, one hundred two thousand, twenty-one".