100211212122149 has 2 divisors, whose sum is σ = 100211212122150. Its totient is φ = 100211212122148.

The previous prime is 100211212122139. The next prime is 100211212122221. The reversal of 100211212122149 is 941221212112001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77665267584100 + 22545944538049 = 8812790^2 + 4748257^2 .

It is a cyclic number.

It is not a de Polignac number, because 100211212122149 - 2³⁶ = 100142492645413 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100211212122139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105606061074 + 50105606061075.

It is an arithmetic number, because the mean of its divisors is an integer number (50105606061075).

Almost surely, 2^{100211212122149} is an apocalyptic number.

It is an amenable number.

100211212122149 is a deficient number, since it is larger than the sum of its proper divisors (1).

100211212122149 is an equidigital number, since it uses as much as digits as its factorization.

100211212122149 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 29.

The spelling of 100211212122149 in words is "one hundred trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty-two thousand, one hundred forty-nine".