2122111020149 has 2 divisors, whose sum is σ = 2122111020150. Its totient is φ = 2122111020148.

The previous prime is 2122111020101. The next prime is 2122111020151. The reversal of 2122111020149 is 9410201112212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2105058577924 + 17052442225 = 1450882^2 + 130585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122111020149 is a prime.

Together with 2122111020151, 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 (2122111020649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061055510074 + 1061055510075.

It is an arithmetic number, because the mean of its divisors is an integer number (1061055510075).

Almost surely, 2^{2122111020149} is an apocalyptic number.

It is an amenable number.

2122111020149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122111020149 is an equidigital number, since it uses as much as digits as its factorization.

2122111020149 is an evil number, because the sum of its binary digits is even.

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

The spelling of 2122111020149 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, twenty thousand, one hundred forty-nine".