1212112100011 has 2 divisors, whose sum is σ = 1212112100012. Its totient is φ = 1212112100010.

The previous prime is 1212112099967. The next prime is 1212112100051. The reversal of 1212112100011 is 1100012112121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212112100011 - 2¹³ = 1212112091819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212112099964 and 1212112100000.

It is not a weakly prime, because it can be changed into another prime (1212112100051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606056050005 + 606056050006.

It is an arithmetic number, because the mean of its divisors is an integer number (606056050006).

Almost surely, 2^{1212112100011} is an apocalyptic number.

1212112100011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212112100011 is an equidigital number, since it uses as much as digits as its factorization.

1212112100011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1212112100011 its reverse (1100012112121), we get a palindrome (2312124212132).

It can be divided in two parts, 121211 and 2100011, that added together give a palindrome (2221222).

The spelling of 1212112100011 in words is "one trillion, two hundred twelve billion, one hundred twelve million, one hundred thousand, eleven".