212111131241 has 8 divisors (see below), whose sum is σ = 214322129064. Its totient is φ = 209905991680.

The previous prime is 212111131163. The next prime is 212111131261. The reversal of 212111131241 is 142131111212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2350795225 + 209760336016 = 48485^2 + 457996^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212111131241 is a prime.

It is a super-2 number, since 2×212111131241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212111131261) 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 7 ways as a sum of consecutive naturals, for example, 1391756 + ... + 1536621.

It is an arithmetic number, because the mean of its divisors is an integer number (26790266133).

Almost surely, 2^212111131241 is an apocalyptic number.

It is an amenable number.

212111131241 is a deficient number, since it is larger than the sum of its proper divisors (2210997823).

212111131241 is a wasteful number, since it uses less digits than its factorization.

212111131241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929131.

The product of its digits is 96, while the sum is 20.

Adding to 212111131241 its reverse (142131111212), we get a palindrome (354242242453).

The spelling of 212111131241 in words is "two hundred twelve billion, one hundred eleven million, one hundred thirty-one thousand, two hundred forty-one".