211121111201 has 32 divisors (see below), whose sum is σ = 283507838208. Its totient is φ = 151831491840.

The previous prime is 211121111177. The next prime is 211121111219. The reversal of 211121111201 is 102111121112.

It is a de Polignac number, because none of the positive numbers 2^k-211121111201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211121111231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8593331 + ... + 8617863.

It is an arithmetic number, because the mean of its divisors is an integer number (8859619944).

Almost surely, 2^211121111201 is an apocalyptic number.

It is an amenable number.

211121111201 is a deficient number, since it is larger than the sum of its proper divisors (72386727007).

211121111201 is a wasteful number, since it uses less digits than its factorization.

211121111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33161.

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

Adding to 211121111201 its reverse (102111121112), we get a palindrome (313232232313).

The spelling of 211121111201 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred one".