11053221045 has 16 divisors (see below), whose sum is σ = 17975075712. Its totient is φ = 5798410560.

The previous prime is 11053221043. The next prime is 11053221059. The reversal of 11053221045 is 54012235011.

It is a happy number.

It is not a de Polignac number, because 11053221045 - 2¹ = 11053221043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11053221043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6039097 + ... + 6040926.

It is an arithmetic number, because the mean of its divisors is an integer number (1123442232).

Almost surely, 2^11053221045 is an apocalyptic number.

11053221045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11053221045 is a deficient number, since it is larger than the sum of its proper divisors (6921854667).

11053221045 is a wasteful number, since it uses less digits than its factorization.

11053221045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12080092.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 11053221045 its reverse (54012235011), we get a palindrome (65065456056).

The spelling of 11053221045 in words is "eleven billion, fifty-three million, two hundred twenty-one thousand, forty-five".