211011131201 has 4 divisors (see below), whose sum is σ = 227242756692. Its totient is φ = 194779505712.

The previous prime is 211011131179. The next prime is 211011131231. The reversal of 211011131201 is 102131110112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 61088065600 + 149923065601 = 247160^2 + 387199^2 .

It is a cyclic number.

It is not a de Polignac number, because 211011131201 - 2³⁴ = 193831262017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211011131231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8115812726 + ... + 8115812751.

It is an arithmetic number, because the mean of its divisors is an integer number (56810689173).

Almost surely, 2^211011131201 is an apocalyptic number.

It is an amenable number.

211011131201 is a deficient number, since it is larger than the sum of its proper divisors (16231625491).

211011131201 is a wasteful number, since it uses less digits than its factorization.

211011131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16231625490.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 211011131201 its reverse (102131110112), we get a palindrome (313142241313).

The spelling of 211011131201 in words is "two hundred eleven billion, eleven million, one hundred thirty-one thousand, two hundred one".