101212100089 has 2 divisors, whose sum is σ = 101212100090. Its totient is φ = 101212100088.

The previous prime is 101212100029. The next prime is 101212100183. The reversal of 101212100089 is 980001212101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95408707689 + 5803392400 = 308883^2 + 76180^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212100089 - 2¹¹ = 101212098041 is a prime.

It is not a weakly prime, because it can be changed into another prime (101212100009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606050044 + 50606050045.

It is an arithmetic number, because the mean of its divisors is an integer number (50606050045).

Almost surely, 2^101212100089 is an apocalyptic number.

It is an amenable number.

101212100089 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212100089 is an equidigital number, since it uses as much as digits as its factorization.

101212100089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 101212100089 in words is "one hundred one billion, two hundred twelve million, one hundred thousand, eighty-nine".