102112201220149 has 2 divisors, whose sum is σ = 102112201220150. Its totient is φ = 102112201220148.

The previous prime is 102112201220137. The next prime is 102112201220297. The reversal of 102112201220149 is 941022102211201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57809106432900 + 44303094787249 = 7603230^2 + 6656057^2 .

It is a cyclic number.

It is not a de Polignac number, because 102112201220149 - 2³¹ = 102110053736501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102112201020149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056100610074 + 51056100610075.

It is an arithmetic number, because the mean of its divisors is an integer number (51056100610075).

Almost surely, 2^{102112201220149} is an apocalyptic number.

It is an amenable number.

102112201220149 is a deficient number, since it is larger than the sum of its proper divisors (1).

102112201220149 is an equidigital number, since it uses as much as digits as its factorization.

102112201220149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 102112201220149 in words is "one hundred two trillion, one hundred twelve billion, two hundred one million, two hundred twenty thousand, one hundred forty-nine".