11122404321 has 32 divisors (see below), whose sum is σ = 17158809600. Its totient is φ = 6277239936.

The previous prime is 11122404313. The next prime is 11122404329. The reversal of 11122404321 is 12340422111.

It is an interprime number because it is at equal distance from previous prime (11122404313) and next prime (11122404329).

It is not a de Polignac number, because 11122404321 - 2³ = 11122404313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (11122404329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562810 + ... + 582236.

It is an arithmetic number, because the mean of its divisors is an integer number (536212800).

Almost surely, 2^11122404321 is an apocalyptic number.

It is an amenable number.

11122404321 is a deficient number, since it is larger than the sum of its proper divisors (6036405279).

11122404321 is a wasteful number, since it uses less digits than its factorization.

11122404321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19773.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11122404321 its reverse (12340422111), we get a palindrome (23462826432).

The spelling of 11122404321 in words is "eleven billion, one hundred twenty-two million, four hundred four thousand, three hundred twenty-one".