101220019699 has 2 divisors, whose sum is σ = 101220019700. Its totient is φ = 101220019698.

The previous prime is 101220019697. The next prime is 101220019709. The reversal of 101220019699 is 996910022101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101220019699 - 2¹ = 101220019697 is a prime.

Together with 101220019697, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (101220019697) 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, 50610009849 + 50610009850.

It is an arithmetic number, because the mean of its divisors is an integer number (50610009850).

Almost surely, 2^101220019699 is an apocalyptic number.

101220019699 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220019699 is an equidigital number, since it uses as much as digits as its factorization.

101220019699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 101220019699 in words is "one hundred one billion, two hundred twenty million, nineteen thousand, six hundred ninety-nine".