201211101121 has 8 divisors (see below), whose sum is σ = 206508800160. Its totient is φ = 195980888928.

The previous prime is 201211101109. The next prime is 201211101127. The reversal of 201211101121 is 121101112102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201211101121 - 2¹¹ = 201211099073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201211101127) 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 in 7 ways as a sum of consecutive naturals, for example, 16865671 + ... + 16877596.

It is an arithmetic number, because the mean of its divisors is an integer number (25813600020).

Almost surely, 2^201211101121 is an apocalyptic number.

It is an amenable number.

201211101121 is a deficient number, since it is larger than the sum of its proper divisors (5297699039).

201211101121 is an equidigital number, since it uses as much as digits as its factorization.

201211101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33743423.

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

Adding to 201211101121 its reverse (121101112102), we get a palindrome (322312213223).

The spelling of 201211101121 in words is "two hundred one billion, two hundred eleven million, one hundred one thousand, one hundred twenty-one".