11220421041 has 6 divisors (see below), whose sum is σ = 16207274850. Its totient is φ = 7480280688.

The previous prime is 11220421031. The next prime is 11220421067. The reversal of 11220421041 is 14012402211.

It can be written as a sum of positive squares in only one way, i.e., 11037603600 + 182817441 = 105060^2 + 13521^2 .

It is not a de Polignac number, because 11220421041 - 2¹⁵ = 11220388273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220421031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623356716 + ... + 623356733.

It is an arithmetic number, because the mean of its divisors is an integer number (2701212475).

Almost surely, 2^11220421041 is an apocalyptic number.

It is an amenable number.

11220421041 is a deficient number, since it is larger than the sum of its proper divisors (4986853809).

11220421041 is a wasteful number, since it uses less digits than its factorization.

11220421041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246713455 (or 1246713452 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11220421041 its reverse (14012402211), we get a palindrome (25232823252).

The spelling of 11220421041 in words is "eleven billion, two hundred twenty million, four hundred twenty-one thousand, forty-one".