100421462209 has 2 divisors, whose sum is σ = 100421462210. Its totient is φ = 100421462208.

The previous prime is 100421462159. The next prime is 100421462353. The reversal of 100421462209 is 902264124001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94600535184 + 5820927025 = 307572^2 + 76295^2 .

It is an emirp because it is prime and its reverse (902264124001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100421462209 - 2⁷ = 100421462081 is a prime.

It is not a weakly prime, because it can be changed into another prime (100421468209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210731104 + 50210731105.

It is an arithmetic number, because the mean of its divisors is an integer number (50210731105).

Almost surely, 2^100421462209 is an apocalyptic number.

It is an amenable number.

100421462209 is a deficient number, since it is larger than the sum of its proper divisors (1).

100421462209 is an equidigital number, since it uses as much as digits as its factorization.

100421462209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 100421462209 in words is "one hundred billion, four hundred twenty-one million, four hundred sixty-two thousand, two hundred nine".