212415000247 has 2 divisors, whose sum is σ = 212415000248. Its totient is φ = 212415000246.

The previous prime is 212415000233. The next prime is 212415000251. The reversal of 212415000247 is 742000514212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212415000247 is a prime.

It is a super-2 number, since 2×212415000247² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212415006247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106207500123 + 106207500124.

It is an arithmetic number, because the mean of its divisors is an integer number (106207500124).

Almost surely, 2^212415000247 is an apocalyptic number.

212415000247 is a deficient number, since it is larger than the sum of its proper divisors (1).

212415000247 is an equidigital number, since it uses as much as digits as its factorization.

212415000247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

Adding to 212415000247 its reverse (742000514212), we get a palindrome (954415514459).

The spelling of 212415000247 in words is "two hundred twelve billion, four hundred fifteen million, two hundred forty-seven", and thus it is an aban number.