121012010113009 has 2 divisors, whose sum is σ = 121012010113010. Its totient is φ = 121012010113008.

The previous prime is 121012010112991. The next prime is 121012010113031. The reversal of 121012010113009 is 900311010210121.

It is an a-pointer prime, because the next prime (121012010113031) can be obtained adding 121012010113009 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120923891971600 + 88118141409 = 10996540^2 + 296847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121012010113009 is a prime.

It is not a weakly prime, because it can be changed into another prime (121012010113039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506005056504 + 60506005056505.

It is an arithmetic number, because the mean of its divisors is an integer number (60506005056505).

Almost surely, 2^{121012010113009} is an apocalyptic number.

It is an amenable number.

121012010113009 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012010113009 is an equidigital number, since it uses as much as digits as its factorization.

121012010113009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 121012010113009 in words is "one hundred twenty-one trillion, twelve billion, ten million, one hundred thirteen thousand, nine".