211121002203201 has 6 divisors (see below), whose sum is σ = 304952558737970. Its totient is φ = 140747334802128.

The previous prime is 211121002203169. The next prime is 211121002203263. The reversal of 211121002203201 is 102302200121112.

211121002203201 is a `hidden beast` number, since 2 + 1 + 1 + 121 + 0 + 0 + 220 + 320 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 141256814292801 + 69864187910400 = 11885151^2 + 8358480^2 .

It is not a de Polignac number, because 211121002203201 - 2⁵ = 211121002203169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211121002201201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11728944566836 + ... + 11728944566853.

Almost surely, 2^{211121002203201} is an apocalyptic number.

It is an amenable number.

211121002203201 is a deficient number, since it is larger than the sum of its proper divisors (93831556534769).

211121002203201 is a wasteful number, since it uses less digits than its factorization.

211121002203201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23457889133695 (or 23457889133692 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 211121002203201 its reverse (102302200121112), we get a palindrome (313423202324313).

The spelling of 211121002203201 in words is "two hundred eleven trillion, one hundred twenty-one billion, two million, two hundred three thousand, two hundred one".