201020121200101 has 16 divisors (see below), whose sum is σ = 230391520619904. Its totient is φ = 171812296111104.

The previous prime is 201020121200077. The next prime is 201020121200131. The reversal of 201020121200101 is 101002121020102.

It is a cyclic number.

It is not a de Polignac number, because 201020121200101 - 2¹⁷ = 201020121069029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020121200131) 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, 176065465 + ... + 177203521.

It is an arithmetic number, because the mean of its divisors is an integer number (14399470038744).

Almost surely, 2^{201020121200101} is an apocalyptic number.

It is an amenable number.

201020121200101 is a deficient number, since it is larger than the sum of its proper divisors (29371399419803).

201020121200101 is a wasteful number, since it uses less digits than its factorization.

201020121200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209900.

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

Adding to 201020121200101 its reverse (101002121020102), we get a palindrome (302022242220203).

The spelling of 201020121200101 in words is "two hundred one trillion, twenty billion, one hundred twenty-one million, two hundred thousand, one hundred one".