121212001122011 has 2 divisors, whose sum is σ = 121212001122012. Its totient is φ = 121212001122010.

The previous prime is 121212001121993. The next prime is 121212001122049. The reversal of 121212001122011 is 110221100212121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121212001122011 - 2³⁰ = 121210927380187 is a prime.

It is not a weakly prime, because it can be changed into another prime (121212001125011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60606000561005 + 60606000561006.

It is an arithmetic number, because the mean of its divisors is an integer number (60606000561006).

Almost surely, 2^{121212001122011} is an apocalyptic number.

121212001122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121212001122011 is an equidigital number, since it uses as much as digits as its factorization.

121212001122011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121212001122011 its reverse (110221100212121), we get a palindrome (231433101334132).

The spelling of 121212001122011 in words is "one hundred twenty-one trillion, two hundred twelve billion, one million, one hundred twenty-two thousand, eleven".