1012120212149 has 2 divisors, whose sum is σ = 1012120212150. Its totient is φ = 1012120212148.

The previous prime is 1012120212137. The next prime is 1012120212151. The reversal of 1012120212149 is 9412120212101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 881499409924 + 130620802225 = 938882^2 + 361415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012120212149 - 2⁴ = 1012120212133 is a prime.

Together with 1012120212151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012120212199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506060106074 + 506060106075.

It is an arithmetic number, because the mean of its divisors is an integer number (506060106075).

Almost surely, 2^{1012120212149} is an apocalyptic number.

It is an amenable number.

1012120212149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012120212149 is an equidigital number, since it uses as much as digits as its factorization.

1012120212149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 1012120212149 in words is "one trillion, twelve billion, one hundred twenty million, two hundred twelve thousand, one hundred forty-nine".