11012209489 has 2 divisors, whose sum is σ = 11012209490. Its totient is φ = 11012209488.

The previous prime is 11012209457. The next prime is 11012209529. The reversal of 11012209489 is 98490221011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10244476225 + 767733264 = 101215^2 + 27708^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012209489 - 2⁵ = 11012209457 is a prime.

It is a super-2 number, since 2×11012209489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11012209409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506104744 + 5506104745.

It is an arithmetic number, because the mean of its divisors is an integer number (5506104745).

Almost surely, 2^11012209489 is an apocalyptic number.

It is an amenable number.

11012209489 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012209489 is an equidigital number, since it uses as much as digits as its factorization.

11012209489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 11012209489 in words is "eleven billion, twelve million, two hundred nine thousand, four hundred eighty-nine".