201021000012101 has 16 divisors (see below), whose sum is σ = 209940161779584. Its totient is φ = 192116778959424.

The previous prime is 201021000012061. The next prime is 201021000012121. The reversal of 201021000012101 is 101210000120102.

201021000012101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 201021000012101 - 2¹⁰ = 201021000011077 is a prime.

It is a super-2 number, since 2×201021000012101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021000012121) 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, 675477131 + ... + 675774663.

It is an arithmetic number, because the mean of its divisors is an integer number (13121260111224).

Almost surely, 2^{201021000012101} is an apocalyptic number.

It is an amenable number.

201021000012101 is a deficient number, since it is larger than the sum of its proper divisors (8919161767483).

201021000012101 is a wasteful number, since it uses less digits than its factorization.

201021000012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322540.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201021000012101 its reverse (101210000120102), we get a palindrome (302231000132203).

The spelling of 201021000012101 in words is "two hundred one trillion, twenty-one billion, twelve thousand, one hundred one".