507106010221 has 2 divisors, whose sum is σ = 507106010222. Its totient is φ = 507106010220.

The previous prime is 507106010189. The next prime is 507106010227. The reversal of 507106010221 is 122010601705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422649513225 + 84456496996 = 650115^2 + 290614^2 .

It is a cyclic number.

It is not a de Polignac number, because 507106010221 - 2⁵ = 507106010189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507106010227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253553005110 + 253553005111.

It is an arithmetic number, because the mean of its divisors is an integer number (253553005111).

Almost surely, 2^507106010221 is an apocalyptic number.

It is an amenable number.

507106010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

507106010221 is an equidigital number, since it uses as much as digits as its factorization.

507106010221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

Adding to 507106010221 its reverse (122010601705), we get a palindrome (629116611926).

The spelling of 507106010221 in words is "five hundred seven billion, one hundred six million, ten thousand, two hundred twenty-one".