11221322355 has 48 divisors (see below), whose sum is σ = 20018265696. Its totient is φ = 5811563520.

The previous prime is 11221322351. The next prime is 11221322383. The reversal of 11221322355 is 55322312211.

It is not a de Polignac number, because 11221322355 - 2² = 11221322351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221322351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 317995 + ... + 351515.

It is an arithmetic number, because the mean of its divisors is an integer number (417047202).

Almost surely, 2^11221322355 is an apocalyptic number.

11221322355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11221322355 is a deficient number, since it is larger than the sum of its proper divisors (8796943341).

11221322355 is a wasteful number, since it uses less digits than its factorization.

11221322355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33748 (or 33745 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

Adding to 11221322355 its reverse (55322312211), we get a palindrome (66543634566).

The spelling of 11221322355 in words is "eleven billion, two hundred twenty-one million, three hundred twenty-two thousand, three hundred fifty-five".