121022120209867 has 2 divisors, whose sum is σ = 121022120209868. Its totient is φ = 121022120209866.

The previous prime is 121022120209721. The next prime is 121022120210029. The reversal of 121022120209867 is 768902021220121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121022120209867 - 2²⁷ = 121021985992139 is a prime.

It is not a weakly prime, because it can be changed into another prime (121022120200867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511060104933 + 60511060104934.

It is an arithmetic number, because the mean of its divisors is an integer number (60511060104934).

Almost surely, 2^{121022120209867} is an apocalyptic number.

121022120209867 is a deficient number, since it is larger than the sum of its proper divisors (1).

121022120209867 is an equidigital number, since it uses as much as digits as its factorization.

121022120209867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

Adding to 121022120209867 its reverse (768902021220121), we get a palindrome (889924141429988).

The spelling of 121022120209867 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty million, two hundred nine thousand, eight hundred sixty-seven".