212103229997 has 2 divisors, whose sum is σ = 212103229998. Its totient is φ = 212103229996.

The previous prime is 212103229969. The next prime is 212103230021. The reversal of 212103229997 is 799922301212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164332133641 + 47771096356 = 405379^2 + 218566^2 .

It is a cyclic number.

It is not a de Polignac number, because 212103229997 - 2¹⁴ = 212103213613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212103229937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051614998 + 106051614999.

It is an arithmetic number, because the mean of its divisors is an integer number (106051614999).

Almost surely, 2^212103229997 is an apocalyptic number.

It is an amenable number.

212103229997 is a deficient number, since it is larger than the sum of its proper divisors (1).

212103229997 is an equidigital number, since it uses as much as digits as its factorization.

212103229997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 212103229997 in words is "two hundred twelve billion, one hundred three million, two hundred twenty-nine thousand, nine hundred ninety-seven".