11122221247 has 2 divisors, whose sum is σ = 11122221248. Its totient is φ = 11122221246.

The previous prime is 11122221211. The next prime is 11122221337. The reversal of 11122221247 is 74212222111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11122221247 - 2²⁷ = 10988003519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122221347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561110623 + 5561110624.

It is an arithmetic number, because the mean of its divisors is an integer number (5561110624).

Almost surely, 2^11122221247 is an apocalyptic number.

11122221247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122221247 is an equidigital number, since it uses as much as digits as its factorization.

11122221247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 896, while the sum is 25.

Adding to 11122221247 its reverse (74212222111), we get a palindrome (85334443358).

The spelling of 11122221247 in words is "eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred forty-seven".