11221211147 has 2 divisors, whose sum is σ = 11221211148. Its totient is φ = 11221211146.

The previous prime is 11221211137. The next prime is 11221211153. The reversal of 11221211147 is 74111212211.

It is a strong prime.

It is an emirp because it is prime and its reverse (74111212211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11221211147 - 2¹⁴ = 11221194763 is a prime.

It is not a weakly prime, because it can be changed into another prime (11221211107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610605573 + 5610605574.

It is an arithmetic number, because the mean of its divisors is an integer number (5610605574).

Almost surely, 2^11221211147 is an apocalyptic number.

11221211147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221211147 is an equidigital number, since it uses as much as digits as its factorization.

11221211147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 23.

Adding to 11221211147 its reverse (74111212211), we get a palindrome (85332423358).

The spelling of 11221211147 in words is "eleven billion, two hundred twenty-one million, two hundred eleven thousand, one hundred forty-seven".