101011022199809 has 2 divisors, whose sum is σ = 101011022199810. Its totient is φ = 101011022199808.

The previous prime is 101011022199781. The next prime is 101011022199973. The reversal of 101011022199809 is 908991220110101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94425141907600 + 6585880292209 = 9717260^2 + 2566297^2 .

It is a cyclic number.

It is not a de Polignac number, because 101011022199809 - 2⁸ = 101011022199553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101011022199809.

It is not a weakly prime, because it can be changed into another prime (101011022159809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505511099904 + 50505511099905.

It is an arithmetic number, because the mean of its divisors is an integer number (50505511099905).

Almost surely, 2^{101011022199809} is an apocalyptic number.

It is an amenable number.

101011022199809 is a deficient number, since it is larger than the sum of its proper divisors (1).

101011022199809 is an equidigital number, since it uses as much as digits as its factorization.

101011022199809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 44.

The spelling of 101011022199809 in words is "one hundred one trillion, eleven billion, twenty-two million, one hundred ninety-nine thousand, eight hundred nine".