121212335343 has 32 divisors (see below), whose sum is σ = 190114848000. Its totient is φ = 67898131200.

The previous prime is 121212335339. The next prime is 121212335371. The reversal of 121212335343 is 343533212121.

It is not a de Polignac number, because 121212335343 - 2² = 121212335339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121212335343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212335143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2331868 + ... + 2383281.

It is an arithmetic number, because the mean of its divisors is an integer number (5941089000).

Almost surely, 2^121212335343 is an apocalyptic number.

121212335343 is a deficient number, since it is larger than the sum of its proper divisors (68902512657).

121212335343 is a wasteful number, since it uses less digits than its factorization.

121212335343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715223.

The product of its digits is 12960, while the sum is 30.

Adding to 121212335343 its reverse (343533212121), we get a palindrome (464745547464).

The spelling of 121212335343 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred thirty-five thousand, three hundred forty-three".