121020122199967 has 2 divisors, whose sum is σ = 121020122199968. Its totient is φ = 121020122199966.

The previous prime is 121020122199961. The next prime is 121020122200013. The reversal of 121020122199967 is 769991221020121.

It is a weak prime.

It is an emirp because it is prime and its reverse (769991221020121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121020122199967 - 2¹⁹ = 121020121675679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020122199961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510061099983 + 60510061099984.

It is an arithmetic number, because the mean of its divisors is an integer number (60510061099984).

Almost surely, 2^{121020122199967} is an apocalyptic number.

121020122199967 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020122199967 is an equidigital number, since it uses as much as digits as its factorization.

121020122199967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 52.

The spelling of 121020122199967 in words is "one hundred twenty-one trillion, twenty billion, one hundred twenty-two million, one hundred ninety-nine thousand, nine hundred sixty-seven".