2102112212149 has 2 divisors, whose sum is σ = 2102112212150. Its totient is φ = 2102112212148.

The previous prime is 2102112212119. The next prime is 2102112212177. The reversal of 2102112212149 is 9412122112012.

It is an a-pointer prime, because the next prime (2102112212177) can be obtained adding 2102112212149 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2099259049924 + 2853162225 = 1448882^2 + 53415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102112212149 - 2¹⁷ = 2102112081077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102112212119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051056106074 + 1051056106075.

It is an arithmetic number, because the mean of its divisors is an integer number (1051056106075).

Almost surely, 2^{2102112212149} is an apocalyptic number.

It is an amenable number.

2102112212149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102112212149 is an equidigital number, since it uses as much as digits as its factorization.

2102112212149 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 28.

The spelling of 2102112212149 in words is "two trillion, one hundred two billion, one hundred twelve million, two hundred twelve thousand, one hundred forty-nine".