201201001121011 has 4 divisors (see below), whose sum is σ = 209948870734992. Its totient is φ = 192453131507032.

The previous prime is 201201001120997. The next prime is 201201001121041. The reversal of 201201001121011 is 110121100102102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201201001121011 - 2¹⁷ = 201201000989939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201201001120982 and 201201001121000.

It is not an unprimeable number, because it can be changed into a prime (201201001121041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4373934806956 + ... + 4373934807001.

It is an arithmetic number, because the mean of its divisors is an integer number (52487217683748).

Almost surely, 2^{201201001121011} is an apocalyptic number.

201201001121011 is a deficient number, since it is larger than the sum of its proper divisors (8747869613981).

201201001121011 is an equidigital number, since it uses as much as digits as its factorization.

201201001121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8747869613980.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201201001121011 its reverse (110121100102102), we get a palindrome (311322101223113).

The spelling of 201201001121011 in words is "two hundred one trillion, two hundred one billion, one million, one hundred twenty-one thousand, eleven".