100120002121049 has 2 divisors, whose sum is σ = 100120002121050. Its totient is φ = 100120002121048.

The previous prime is 100120002121043. The next prime is 100120002121147. The reversal of 100120002121049 is 940121200021001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65725589265424 + 34394412855625 = 8107132^2 + 5864675^2 .

It is an emirp because it is prime and its reverse (940121200021001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100120002121049 is a prime.

It is not a weakly prime, because it can be changed into another prime (100120002121043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060001060524 + 50060001060525.

It is an arithmetic number, because the mean of its divisors is an integer number (50060001060525).

Almost surely, 2^{100120002121049} is an apocalyptic number.

It is an amenable number.

100120002121049 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120002121049 is an equidigital number, since it uses as much as digits as its factorization.

100120002121049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 100120002121049 in words is "one hundred trillion, one hundred twenty billion, two million, one hundred twenty-one thousand, forty-nine".