1012120221019 has 2 divisors, whose sum is σ = 1012120221020. Its totient is φ = 1012120221018.

The previous prime is 1012120221017. The next prime is 1012120221097. The reversal of 1012120221019 is 9101220212101.

It is a weak prime.

It is an emirp because it is prime and its reverse (9101220212101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1012120221019 - 2¹ = 1012120221017 is a prime.

It is a super-2 number, since 2×1012120221019² (a number of 25 digits) contains 22 as substring.

Together with 1012120221017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1012120221017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506060110509 + 506060110510.

It is an arithmetic number, because the mean of its divisors is an integer number (506060110510).

Almost surely, 2^{1012120221019} is an apocalyptic number.

1012120221019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012120221019 is an equidigital number, since it uses as much as digits as its factorization.

1012120221019 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 22.

The spelling of 1012120221019 in words is "one trillion, twelve billion, one hundred twenty million, two hundred twenty-one thousand, nineteen".