1202212444009 has 2 divisors, whose sum is σ = 1202212444010. Its totient is φ = 1202212444008.

The previous prime is 1202212444007. The next prime is 1202212444019. The reversal of 1202212444009 is 9004442122021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1005200744409 + 197011699600 = 1002597^2 + 443860^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202212444009 - 2¹ = 1202212444007 is a prime.

Together with 1202212444007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1202212444007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601106222004 + 601106222005.

It is an arithmetic number, because the mean of its divisors is an integer number (601106222005).

Almost surely, 2^{1202212444009} is an apocalyptic number.

It is an amenable number.

1202212444009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202212444009 is an equidigital number, since it uses as much as digits as its factorization.

1202212444009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 1202212444009 in words is "one trillion, two hundred two billion, two hundred twelve million, four hundred forty-four thousand, nine".