212929605149 has 2 divisors, whose sum is σ = 212929605150. Its totient is φ = 212929605148.

The previous prime is 212929605139. The next prime is 212929605199. The reversal of 212929605149 is 941506929212.

It is an a-pointer prime, because the next prime (212929605199) can be obtained adding 212929605149 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184766724025 + 28162881124 = 429845^2 + 167818^2 .

It is a cyclic number.

It is not a de Polignac number, because 212929605149 - 2²⁰ = 212928556573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212929605097 and 212929605106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212929605139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106464802574 + 106464802575.

It is an arithmetic number, because the mean of its divisors is an integer number (106464802575).

Almost surely, 2^212929605149 is an apocalyptic number.

It is an amenable number.

212929605149 is a deficient number, since it is larger than the sum of its proper divisors (1).

212929605149 is an equidigital number, since it uses as much as digits as its factorization.

212929605149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 212929605149 in words is "two hundred twelve billion, nine hundred twenty-nine million, six hundred five thousand, one hundred forty-nine".