201121001112011 has 2 divisors, whose sum is σ = 201121001112012. Its totient is φ = 201121001112010.

The previous prime is 201121001111993. The next prime is 201121001112259. The reversal of 201121001112011 is 110211100121102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201121001112011 - 2³⁸ = 200846123205067 is a prime.

It is a super-4 number, since 4×201121001112011⁴ (a number of 58 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (201121031112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560500556005 + 100560500556006.

It is an arithmetic number, because the mean of its divisors is an integer number (100560500556006).

Almost surely, 2^{201121001112011} is an apocalyptic number.

201121001112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

201121001112011 is an equidigital number, since it uses as much as digits as its factorization.

201121001112011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201121001112011 its reverse (110211100121102), we get a palindrome (311332101233113).

Subtracting from 201121001112011 its reverse (110211100121102), we obtain a palindrome (90909900990909).

The spelling of 201121001112011 in words is "two hundred one trillion, one hundred twenty-one billion, one million, one hundred twelve thousand, eleven".