101220202009999 has 2 divisors, whose sum is σ = 101220202010000. Its totient is φ = 101220202009998.

The previous prime is 101220202009981. The next prime is 101220202010009. The reversal of 101220202009999 is 999900202022101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101220202009999 - 2¹⁷ = 101220201878927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101220202006999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610101004999 + 50610101005000.

It is an arithmetic number, because the mean of its divisors is an integer number (50610101005000).

Almost surely, 2^{101220202009999} is an apocalyptic number.

101220202009999 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220202009999 is an equidigital number, since it uses as much as digits as its factorization.

101220202009999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 101220202009999 in words is "one hundred one trillion, two hundred twenty billion, two hundred two million, nine thousand, nine hundred ninety-nine".