2102220149 has 2 divisors, whose sum is σ = 2102220150. Its totient is φ = 2102220148.

The previous prime is 2102220061. The next prime is 2102220151. The reversal of 2102220149 is 9410222012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1076299249 + 1025920900 = 32807^2 + 32030^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102220149 - 2⁸ = 2102219893 is a prime.

Together with 2102220151, 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 (2102220199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051110074 + 1051110075.

It is an arithmetic number, because the mean of its divisors is an integer number (1051110075).

Almost surely, 2^2102220149 is an apocalyptic number.

It is an amenable number.

2102220149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102220149 is an equidigital number, since it uses as much as digits as its factorization.

2102220149 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 23.

The square root of 2102220149 is about 45849.9743620430. The cubic root of 2102220149 is about 1281.0302880395.

The spelling of 2102220149 in words is "two billion, one hundred two million, two hundred twenty thousand, one hundred forty-nine".