121220867 has 2 divisors, whose sum is σ = 121220868. Its totient is φ = 121220866.

The previous prime is 121220861. The next prime is 121220873. The reversal of 121220867 is 768022121.

It is a balanced prime because it is at equal distance from previous prime (121220861) and next prime (121220873).

It is a cyclic number.

It is not a de Polignac number, because 121220867 - 2¹⁴ = 121204483 is a prime.

It is not a weakly prime, because it can be changed into another prime (121220861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610433 + 60610434.

It is an arithmetic number, because the mean of its divisors is an integer number (60610434).

Almost surely, 2^121220867 is an apocalyptic number.

121220867 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220867 is an equidigital number, since it uses as much as digits as its factorization.

121220867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 121220867 is about 11010.0348319158. The cubic root of 121220867 is about 494.9095056147.

Adding to 121220867 its reverse (768022121), we get a palindrome (889242988).

The spelling of 121220867 in words is "one hundred twenty-one million, two hundred twenty thousand, eight hundred sixty-seven".