121206210667 has 2 divisors, whose sum is σ = 121206210668. Its totient is φ = 121206210666.

The previous prime is 121206210659. The next prime is 121206210679. The reversal of 121206210667 is 766012602121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121206210667 - 2³ = 121206210659 is a prime.

It is not a weakly prime, because it can be changed into another prime (121206210607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60603105333 + 60603105334.

It is an arithmetic number, because the mean of its divisors is an integer number (60603105334).

Almost surely, 2^121206210667 is an apocalyptic number.

121206210667 is a deficient number, since it is larger than the sum of its proper divisors (1).

121206210667 is an equidigital number, since it uses as much as digits as its factorization.

121206210667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 121206210667 its reverse (766012602121), we get a palindrome (887218812788).

The spelling of 121206210667 in words is "one hundred twenty-one billion, two hundred six million, two hundred ten thousand, six hundred sixty-seven".