101212080149 has 2 divisors, whose sum is σ = 101212080150. Its totient is φ = 101212080148.

The previous prime is 101212080127. The next prime is 101212080157. The reversal of 101212080149 is 941080212101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84830640049 + 16381440100 = 291257^2 + 127990^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212080149 - 2²⁰ = 101211031573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101212080119) 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, 50606040074 + 50606040075.

It is an arithmetic number, because the mean of its divisors is an integer number (50606040075).

Almost surely, 2^101212080149 is an apocalyptic number.

It is an amenable number.

101212080149 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212080149 is an equidigital number, since it uses as much as digits as its factorization.

101212080149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 101212080149 in words is "one hundred one billion, two hundred twelve million, eighty thousand, one hundred forty-nine".