204212051 has 2 divisors, whose sum is σ = 204212052. Its totient is φ = 204212050.

The previous prime is 204212033. The next prime is 204212053. The reversal of 204212051 is 150212402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204212051 is a prime.

Together with 204212053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204212053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102106025 + 102106026.

It is an arithmetic number, because the mean of its divisors is an integer number (102106026).

Almost surely, 2^204212051 is an apocalyptic number.

204212051 is a deficient number, since it is larger than the sum of its proper divisors (1).

204212051 is an equidigital number, since it uses as much as digits as its factorization.

204212051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 204212051 is about 14290.2781988315. The cubic root of 204212051 is about 588.8804307410.

Adding to 204212051 its reverse (150212402), we get a palindrome (354424453).

The spelling of 204212051 in words is "two hundred four million, two hundred twelve thousand, fifty-one".