201020021100011 has 4 divisors (see below), whose sum is σ = 201972722622024. Its totient is φ = 200067319578000.

The previous prime is 201020021099951. The next prime is 201020021100037. The reversal of 201020021100011 is 110001120020102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201020021100011 is a prime.

It is a super-5 number, since 5×201020021100011⁵ (a number of 73 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201020021099965 and 201020021100001.

It is not an unprimeable number, because it can be changed into a prime (201020021100091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476350760690 + ... + 476350761111.

It is an arithmetic number, because the mean of its divisors is an integer number (50493180655506).

Almost surely, 2^{201020021100011} is an apocalyptic number.

201020021100011 is a deficient number, since it is larger than the sum of its proper divisors (952701522013).

201020021100011 is an equidigital number, since it uses as much as digits as its factorization.

201020021100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952701522012.

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

Adding to 201020021100011 its reverse (110001120020102), we get a palindrome (311021141120113).

The spelling of 201020021100011 in words is "two hundred one trillion, twenty billion, twenty-one million, one hundred thousand, eleven".