206512105201 has 2 divisors, whose sum is σ = 206512105202. Its totient is φ = 206512105200.

The previous prime is 206512105081. The next prime is 206512105231. The reversal of 206512105201 is 102501215602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193015242225 + 13496862976 = 439335^2 + 116176^2 .

It is a cyclic number.

It is not a de Polignac number, because 206512105201 - 2¹³ = 206512097009 is a prime.

It is not a weakly prime, because it can be changed into another prime (206512105231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103256052600 + 103256052601.

It is an arithmetic number, because the mean of its divisors is an integer number (103256052601).

Almost surely, 2^206512105201 is an apocalyptic number.

It is an amenable number.

206512105201 is a deficient number, since it is larger than the sum of its proper divisors (1).

206512105201 is an equidigital number, since it uses as much as digits as its factorization.

206512105201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 206512105201 in words is "two hundred six billion, five hundred twelve million, one hundred five thousand, two hundred one".