1212210212011 has 2 divisors, whose sum is σ = 1212210212012. Its totient is φ = 1212210212010.

The previous prime is 1212210211991. The next prime is 1212210212027. The reversal of 1212210212011 is 1102120122121.

It is an a-pointer prime, because the next prime (1212210212027) can be obtained adding 1212210212011 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212210212011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212210212041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105106005 + 606105106006.

It is an arithmetic number, because the mean of its divisors is an integer number (606105106006).

Almost surely, 2^{1212210212011} is an apocalyptic number.

1212210212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210212011 is an equidigital number, since it uses as much as digits as its factorization.

1212210212011 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 16.

Adding to 1212210212011 its reverse (1102120122121), we get a palindrome (2314330334132).

The spelling of 1212210212011 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred twelve thousand, eleven".