201201111111211 has 4 divisors (see below), whose sum is σ = 203461797753000. Its totient is φ = 198940424469424.

The previous prime is 201201111111149. The next prime is 201201111111241. The reversal of 201201111111211 is 112111111102102.

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 201201111111211 - 2⁷ = 201201111111083 is a prime.

It is a super-2 number, since 2×201201111111211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201201111111241) 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, 1130343320761 + ... + 1130343320938.

It is an arithmetic number, because the mean of its divisors is an integer number (50865449438250).

Almost surely, 2^{201201111111211} is an apocalyptic number.

201201111111211 is a deficient number, since it is larger than the sum of its proper divisors (2260686641789).

201201111111211 is an equidigital number, since it uses as much as digits as its factorization.

201201111111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260686641788.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 201201111111211 its reverse (112111111102102), we get a palindrome (313312222213313).

The spelling of 201201111111211 in words is "two hundred one trillion, two hundred one billion, one hundred eleven million, one hundred eleven thousand, two hundred eleven".