10002100099949 has 2 divisors, whose sum is σ = 10002100099950. Its totient is φ = 10002100099948.

The previous prime is 10002100099913. The next prime is 10002100100029. The reversal of 10002100099949 is 94999000120001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9042307603849 + 959792496100 = 3007043^2 + 979690^2 .

It is a cyclic number.

It is not a de Polignac number, because 10002100099949 - 2¹⁶ = 10002100034413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10002100099049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001050049974 + 5001050049975.

It is an arithmetic number, because the mean of its divisors is an integer number (5001050049975).

Almost surely, 2^{10002100099949} is an apocalyptic number.

It is an amenable number.

10002100099949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10002100099949 is an equidigital number, since it uses as much as digits as its factorization.

10002100099949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 44.

The spelling of 10002100099949 in words is "ten trillion, two billion, one hundred million, ninety-nine thousand, nine hundred forty-nine".