201021120002101 has 32 divisors (see below), whose sum is σ = 242862552576000. Its totient is φ = 162539119229760.

The previous prime is 201021120002099. The next prime is 201021120002107. The reversal of 201021120002101 is 101200021120102.

It is not a de Polignac number, because 201021120002101 - 2¹ = 201021120002099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021120002107) 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, 43430100 + ... + 47835298.

It is an arithmetic number, because the mean of its divisors is an integer number (7589454768000).

Almost surely, 2^{201021120002101} is an apocalyptic number.

It is an amenable number.

201021120002101 is a deficient number, since it is larger than the sum of its proper divisors (41841432573899).

201021120002101 is a wasteful number, since it uses less digits than its factorization.

201021120002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406689.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201021120002101 its reverse (101200021120102), we get a palindrome (302221141122203).

The spelling of 201021120002101 in words is "two hundred one trillion, twenty-one billion, one hundred twenty million, two thousand, one hundred one".