1210001332009 has 2 divisors, whose sum is σ = 1210001332010. Its totient is φ = 1210001332008.

The previous prime is 1210001331971. The next prime is 1210001332021. The reversal of 1210001332009 is 9002331000121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982620177984 + 227381154025 = 991272^2 + 476845^2 .

It is an emirp because it is prime and its reverse (9002331000121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210001332009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210001332039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605000666004 + 605000666005.

It is an arithmetic number, because the mean of its divisors is an integer number (605000666005).

Almost surely, 2^{1210001332009} is an apocalyptic number.

It is an amenable number.

1210001332009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210001332009 is an equidigital number, since it uses as much as digits as its factorization.

1210001332009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 1210001332009 in words is "one trillion, two hundred ten billion, one million, three hundred thirty-two thousand, nine".