212011222122149 has 2 divisors, whose sum is σ = 212011222122150. Its totient is φ = 212011222122148.

The previous prime is 212011222122113. The next prime is 212011222122157. The reversal of 212011222122149 is 941221222110212.

It is a happy number.

212011222122149 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., 202715461401124 + 9295760721025 = 14237818^2 + 3048895^2 .

It is a cyclic number.

It is not a de Polignac number, because 212011222122149 - 2³² = 212006927154853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212011222122179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005611061074 + 106005611061075.

It is an arithmetic number, because the mean of its divisors is an integer number (106005611061075).

Almost surely, 2^{212011222122149} is an apocalyptic number.

It is an amenable number.

212011222122149 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011222122149 is an equidigital number, since it uses as much as digits as its factorization.

212011222122149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 212011222122149 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred forty-nine".