201200001012021 has 32 divisors (see below), whose sum is σ = 302096549339136. Its totient is φ = 118005266808000.

The previous prime is 201200001012019. The next prime is 201200001012047. The reversal of 201200001012021 is 120210100002102.

It is not a de Polignac number, because 201200001012021 - 2¹ = 201200001012019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201200001011988 and 201200001012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200001012221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276016851 + ... + 276744831.

It is an arithmetic number, because the mean of its divisors is an integer number (9440517166848).

Almost surely, 2^{201200001012021} is an apocalyptic number.

It is an amenable number.

201200001012021 is a deficient number, since it is larger than the sum of its proper divisors (100896548327115).

201200001012021 is a wasteful number, since it uses less digits than its factorization.

201200001012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998193.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201200001012021 its reverse (120210100002102), we get a palindrome (321410101014123).

The spelling of 201200001012021 in words is "two hundred one trillion, two hundred billion, one million, twelve thousand, twenty-one".