12101798101 has 2 divisors, whose sum is σ = 12101798102. Its totient is φ = 12101798100.

The previous prime is 12101798077. The next prime is 12101798147. The reversal of 12101798101 is 10189710121.

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., 11930319076 + 171479025 = 109226^2 + 13095^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101798101 - 2⁵ = 12101798069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12101796101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050899050 + 6050899051.

It is an arithmetic number, because the mean of its divisors is an integer number (6050899051).

Almost surely, 2^12101798101 is an apocalyptic number.

It is an amenable number.

12101798101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101798101 is an equidigital number, since it uses as much as digits as its factorization.

12101798101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 31.

The spelling of 12101798101 in words is "twelve billion, one hundred one million, seven hundred ninety-eight thousand, one hundred one".