212343112410121 has 12 divisors (see below), whose sum is σ = 269466955266960. Its totient is φ = 165462165513960.

The previous prime is 212343112410113. The next prime is 212343112410133. The reversal of 212343112410121 is 121014211343212.

It is not a de Polignac number, because 212343112410121 - 2³ = 212343112410113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212343112410121.

It is not an unprimeable number, because it can be changed into a prime (212343112410521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196978767931 + ... + 196978769008.

It is an arithmetic number, because the mean of its divisors is an integer number (22455579605580).

Almost surely, 2^{212343112410121} is an apocalyptic number.

It is an amenable number.

212343112410121 is a deficient number, since it is larger than the sum of its proper divisors (57123842856839).

212343112410121 is a wasteful number, since it uses less digits than its factorization.

212343112410121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393957536964 (or 393957536957 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 212343112410121 its reverse (121014211343212), we get a palindrome (333357323753333).

The spelling of 212343112410121 in words is "two hundred twelve trillion, three hundred forty-three billion, one hundred twelve million, four hundred ten thousand, one hundred twenty-one".