11212122012149 has 2 divisors, whose sum is σ = 11212122012150. Its totient is φ = 11212122012148.

The previous prime is 11212122012109. The next prime is 11212122012163. The reversal of 11212122012149 is 94121022121211.

11212122012149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10444001231524 + 768120780625 = 3231718^2 + 876425^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212122012149 - 2²⁴ = 11212105234933 is a prime.

It is a super-2 number, since 2×11212122012149² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11212122012109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606061006074 + 5606061006075.

It is an arithmetic number, because the mean of its divisors is an integer number (5606061006075).

Almost surely, 2^{11212122012149} is an apocalyptic number.

It is an amenable number.

11212122012149 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212122012149 is an equidigital number, since it uses as much as digits as its factorization.

11212122012149 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 11212122012149 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, twelve thousand, one hundred forty-nine".