512212061 has 2 divisors, whose sum is σ = 512212062. Its totient is φ = 512212060.

The previous prime is 512212033. The next prime is 512212067. The reversal of 512212061 is 160212215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 511619161 + 592900 = 22619^2 + 770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512212061 is a prime.

It is a super-2 number, since 2×512212061² = 524722390867735442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512212067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256106030 + 256106031.

It is an arithmetic number, because the mean of its divisors is an integer number (256106031).

Almost surely, 2^512212061 is an apocalyptic number.

It is an amenable number.

512212061 is a deficient number, since it is larger than the sum of its proper divisors (1).

512212061 is an equidigital number, since it uses as much as digits as its factorization.

512212061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 512212061 is about 22632.1024432111. The cubic root of 512212061 is about 800.1104331924.

Adding to 512212061 its reverse (160212215), we get a palindrome (672424276).

The spelling of 512212061 in words is "five hundred twelve million, two hundred twelve thousand, sixty-one".