100001002021049 has 2 divisors, whose sum is σ = 100001002021050. Its totient is φ = 100001002021048.

The previous prime is 100001002020973. The next prime is 100001002021069. The reversal of 100001002021049 is 940120200100001.

It is an a-pointer prime, because the next prime (100001002021069) can be obtained adding 100001002021049 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99435299475625 + 565702545424 = 9971725^2 + 752132^2 .

It is a cyclic number.

It is not a de Polignac number, because 100001002021049 - 2²⁰ = 100001000972473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100001002021049.

It is not a weakly prime, because it can be changed into another prime (100001002021069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000501010524 + 50000501010525.

It is an arithmetic number, because the mean of its divisors is an integer number (50000501010525).

Almost surely, 2^{100001002021049} is an apocalyptic number.

It is an amenable number.

100001002021049 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001002021049 is an equidigital number, since it uses as much as digits as its factorization.

100001002021049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 100001002021049 in words is "one hundred trillion, one billion, two million, twenty-one thousand, forty-nine".