212332100209 has 2 divisors, whose sum is σ = 212332100210. Its totient is φ = 212332100208.

The previous prime is 212332100147. The next prime is 212332100291. The reversal of 212332100209 is 902001233212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121567282225 + 90764817984 = 348665^2 + 301272^2 .

It is a cyclic number.

It is not a de Polignac number, because 212332100209 - 2⁹ = 212332099697 is a prime.

It is not a weakly prime, because it can be changed into another prime (212332100009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106166050104 + 106166050105.

It is an arithmetic number, because the mean of its divisors is an integer number (106166050105).

Almost surely, 2^212332100209 is an apocalyptic number.

It is an amenable number.

212332100209 is a deficient number, since it is larger than the sum of its proper divisors (1).

212332100209 is an equidigital number, since it uses as much as digits as its factorization.

212332100209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 212332100209 in words is "two hundred twelve billion, three hundred thirty-two million, one hundred thousand, two hundred nine".