2110121220149 has 2 divisors, whose sum is σ = 2110121220150. Its totient is φ = 2110121220148.

The previous prime is 2110121220107. The next prime is 2110121220161. The reversal of 2110121220149 is 9410221210112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1639603420900 + 470517799249 = 1280470^2 + 685943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110121220149 is a prime.

It is a super-2 number, since 2×2110121220149² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110121220349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055060610074 + 1055060610075.

It is an arithmetic number, because the mean of its divisors is an integer number (1055060610075).

Almost surely, 2^{2110121220149} is an apocalyptic number.

It is an amenable number.

2110121220149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110121220149 is an equidigital number, since it uses as much as digits as its factorization.

2110121220149 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 2110121220149 in words is "two trillion, one hundred ten billion, one hundred twenty-one million, two hundred twenty thousand, one hundred forty-nine".