212332100009 has 2 divisors, whose sum is σ = 212332100010. Its totient is φ = 212332100008.

The previous prime is 212332099883. The next prime is 212332100023. The reversal of 212332100009 is 900001233212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131304769600 + 81027330409 = 362360^2 + 284653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212332100009 is a prime.

It is not a weakly prime, because it can be changed into another prime (212332100209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106166050004 + 106166050005.

It is an arithmetic number, because the mean of its divisors is an integer number (106166050005).

Almost surely, 2^212332100009 is an apocalyptic number.

It is an amenable number.

212332100009 is a deficient number, since it is larger than the sum of its proper divisors (1).

212332100009 is an equidigital number, since it uses as much as digits as its factorization.

212332100009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 212332100009 in words is "two hundred twelve billion, three hundred thirty-two million, one hundred thousand, nine".