211132101121 has 4 divisors (see below), whose sum is σ = 212476891732. Its totient is φ = 209787310512.

The previous prime is 211132101101. The next prime is 211132101127. The reversal of 211132101121 is 121101231112.

It is a happy number.

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 62472503025 + 148659598096 = 249945^2 + 385564^2 .

It is a cyclic number.

It is not a de Polignac number, because 211132101121 - 2⁹ = 211132100609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211132101095 and 211132101104.

It is not an unprimeable number, because it can be changed into a prime (211132101127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672395070 + ... + 672395383.

It is an arithmetic number, because the mean of its divisors is an integer number (53119222933).

Almost surely, 2^211132101121 is an apocalyptic number.

It is an amenable number.

211132101121 is a deficient number, since it is larger than the sum of its proper divisors (1344790611).

211132101121 is a wasteful number, since it uses less digits than its factorization.

211132101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344790610.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 211132101121 its reverse (121101231112), we get a palindrome (332233332233).

The spelling of 211132101121 in words is "two hundred eleven billion, one hundred thirty-two million, one hundred one thousand, one hundred twenty-one".