11405222155 has 16 divisors (see below), whose sum is σ = 13983533568. Its totient is φ = 8927568000.

The previous prime is 11405222149. The next prime is 11405222159. The reversal of 11405222155 is 55122250411.

It is not a de Polignac number, because 11405222155 - 2⁹ = 11405221643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11405222159) 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, 39636 + ... + 156145.

It is an arithmetic number, because the mean of its divisors is an integer number (873970848).

Almost surely, 2^11405222155 is an apocalyptic number.

11405222155 is a deficient number, since it is larger than the sum of its proper divisors (2578311413).

11405222155 is a wasteful number, since it uses less digits than its factorization.

11405222155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196038.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 11405222155 its reverse (55122250411), we get a palindrome (66527472566).

The spelling of 11405222155 in words is "eleven billion, four hundred five million, two hundred twenty-two thousand, one hundred fifty-five".