101111212099 has 2 divisors, whose sum is σ = 101111212100. Its totient is φ = 101111212098.

The previous prime is 101111212067. The next prime is 101111212121. The reversal of 101111212099 is 990212111101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101111212099 - 2⁵ = 101111212067 is a prime.

It is not a weakly prime, because it can be changed into another prime (101111212039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555606049 + 50555606050.

It is an arithmetic number, because the mean of its divisors is an integer number (50555606050).

Almost surely, 2^101111212099 is an apocalyptic number.

101111212099 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111212099 is an equidigital number, since it uses as much as digits as its factorization.

101111212099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 101111212099 in words is "one hundred one billion, one hundred eleven million, two hundred twelve thousand, ninety-nine".