11222012212009 has 2 divisors, whose sum is σ = 11222012212010. Its totient is φ = 11222012212008.

The previous prime is 11222012212003. The next prime is 11222012212027. The reversal of 11222012212009 is 90021221022211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7248866986384 + 3973145225625 = 2692372^2 + 1993275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222012212009 is a prime.

It is not a weakly prime, because it can be changed into another prime (11222012212003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611006106004 + 5611006106005.

It is an arithmetic number, because the mean of its divisors is an integer number (5611006106005).

Almost surely, 2^{11222012212009} is an apocalyptic number.

It is an amenable number.

11222012212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222012212009 is an equidigital number, since it uses as much as digits as its factorization.

11222012212009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 11222012212009 in words is "eleven trillion, two hundred twenty-two billion, twelve million, two hundred twelve thousand, nine".