201020121200011 has 16 divisors (see below), whose sum is σ = 205100189319168. Its totient is φ = 196965421725600.

The previous prime is 201020121199951. The next prime is 201020121200027. The reversal of 201020121200011 is 110002121020102.

It is a cyclic number.

It is not a de Polignac number, because 201020121200011 - 2¹¹ = 201020121197963 is a prime.

It is a super-2 number, since 2×201020121200011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201020121199964 and 201020121200000.

It is not an unprimeable number, because it can be changed into a prime (201020121200911) 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, 448450566 + ... + 448898596.

It is an arithmetic number, because the mean of its divisors is an integer number (12818761832448).

Almost surely, 2^{201020121200011} is an apocalyptic number.

201020121200011 is a deficient number, since it is larger than the sum of its proper divisors (4080068119157).

201020121200011 is a wasteful number, since it uses less digits than its factorization.

201020121200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476322.

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

Adding to 201020121200011 its reverse (110002121020102), we get a palindrome (311022242220113).

The spelling of 201020121200011 in words is "two hundred one trillion, twenty billion, one hundred twenty-one million, two hundred thousand, eleven".