212112121001611 has 2 divisors, whose sum is σ = 212112121001612. Its totient is φ = 212112121001610.

The previous prime is 212112121001603. The next prime is 212112121001639. The reversal of 212112121001611 is 116100121211212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212112121001611 - 2³ = 212112121001603 is a prime.

It is not a weakly prime, because it can be changed into another prime (212112121001681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056060500805 + 106056060500806.

It is an arithmetic number, because the mean of its divisors is an integer number (106056060500806).

Almost surely, 2^{212112121001611} is an apocalyptic number.

212112121001611 is a deficient number, since it is larger than the sum of its proper divisors (1).

212112121001611 is an equidigital number, since it uses as much as digits as its factorization.

212112121001611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 22.

Adding to 212112121001611 its reverse (116100121211212), we get a palindrome (328212242212823).

The spelling of 212112121001611 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred twenty-one million, one thousand, six hundred eleven".