121212332011 has 2 divisors, whose sum is σ = 121212332012. Its totient is φ = 121212332010.

The previous prime is 121212331973. The next prime is 121212332051. The reversal of 121212332011 is 110233212121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121212332011 - 2²⁹ = 120675461099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121212332011.

It is not a weakly prime, because it can be changed into another prime (121212332051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60606166005 + 60606166006.

It is an arithmetic number, because the mean of its divisors is an integer number (60606166006).

Almost surely, 2^121212332011 is an apocalyptic number.

121212332011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121212332011 is an equidigital number, since it uses as much as digits as its factorization.

121212332011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121212332011 its reverse (110233212121), we get a palindrome (231445544132).

The spelling of 121212332011 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred thirty-two thousand, eleven".