101212010021999 has 2 divisors, whose sum is σ = 101212010022000. Its totient is φ = 101212010021998.

The previous prime is 101212010021977. The next prime is 101212010022047. The reversal of 101212010021999 is 999120010212101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101212010021999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101212010021909) 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, 50606005010999 + 50606005011000.

It is an arithmetic number, because the mean of its divisors is an integer number (50606005011000).

Almost surely, 2^{101212010021999} is an apocalyptic number.

101212010021999 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212010021999 is an equidigital number, since it uses as much as digits as its factorization.

101212010021999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 101212010021999 in words is "one hundred one trillion, two hundred twelve billion, ten million, twenty-one thousand, nine hundred ninety-nine".