101212110019 has 2 divisors, whose sum is σ = 101212110020. Its totient is φ = 101212110018.

The previous prime is 101212110017. The next prime is 101212110023. The reversal of 101212110019 is 910011212101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101212110019 - 2¹ = 101212110017 is a prime.

It is a super-2 number, since 2×101212110019² (a number of 23 digits) contains 22 as substring.

Together with 101212110017, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 101212109978 and 101212110005.

It is not a weakly prime, because it can be changed into another prime (101212110017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606055009 + 50606055010.

It is an arithmetic number, because the mean of its divisors is an integer number (50606055010).

Almost surely, 2^101212110019 is an apocalyptic number.

101212110019 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212110019 is an equidigital number, since it uses as much as digits as its factorization.

101212110019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 101212110019 in words is "one hundred one billion, two hundred twelve million, one hundred ten thousand, nineteen".