212033321209 has 2 divisors, whose sum is σ = 212033321210. Its totient is φ = 212033321208.

The previous prime is 212033321197. The next prime is 212033321231. The reversal of 212033321209 is 902123330212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171999313984 + 40034007225 = 414728^2 + 200085^2 .

It is a cyclic number.

It is not a de Polignac number, because 212033321209 - 2¹³ = 212033313017 is a prime.

It is not a weakly prime, because it can be changed into another prime (212033321239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106016660604 + 106016660605.

It is an arithmetic number, because the mean of its divisors is an integer number (106016660605).

Almost surely, 2^212033321209 is an apocalyptic number.

It is an amenable number.

212033321209 is a deficient number, since it is larger than the sum of its proper divisors (1).

212033321209 is an equidigital number, since it uses as much as digits as its factorization.

212033321209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 212033321209 in words is "two hundred twelve billion, thirty-three million, three hundred twenty-one thousand, two hundred nine".