212241111121 has 16 divisors (see below), whose sum is σ = 229648446720. Its totient is φ = 194990140800.

The previous prime is 212241111109. The next prime is 212241111133. The reversal of 212241111121 is 121111142212.

It is an interprime number because it is at equal distance from previous prime (212241111109) and next prime (212241111133).

It is a de Polignac number, because none of the positive numbers 2^k-212241111121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212241111161) 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 15 ways as a sum of consecutive naturals, for example, 2641896 + ... + 2721046.

It is an arithmetic number, because the mean of its divisors is an integer number (14353027920).

Almost surely, 2^212241111121 is an apocalyptic number.

It is an amenable number.

212241111121 is a deficient number, since it is larger than the sum of its proper divisors (17407335599).

212241111121 is a wasteful number, since it uses less digits than its factorization.

212241111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80136.

The product of its digits is 64, while the sum is 19.

Adding to 212241111121 its reverse (121111142212), we get a palindrome (333352253333).

The spelling of 212241111121 in words is "two hundred twelve billion, two hundred forty-one million, one hundred eleven thousand, one hundred twenty-one".