121230240122099 has 2 divisors, whose sum is σ = 121230240122100. Its totient is φ = 121230240122098.

The previous prime is 121230240122087. The next prime is 121230240122137. The reversal of 121230240122099 is 990221042032121.

It is an a-pointer prime, because the next prime (121230240122137) can be obtained adding 121230240122099 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121230240122099 - 2⁴ = 121230240122083 is a prime.

It is a super-2 number, since 2×121230240122099² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121230245122099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615120061049 + 60615120061050.

It is an arithmetic number, because the mean of its divisors is an integer number (60615120061050).

Almost surely, 2^{121230240122099} is an apocalyptic number.

121230240122099 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230240122099 is an equidigital number, since it uses as much as digits as its factorization.

121230240122099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 121230240122099 in words is "one hundred twenty-one trillion, two hundred thirty billion, two hundred forty million, one hundred twenty-two thousand, ninety-nine".