22011122321 has 4 divisors (see below), whose sum is σ = 22011950592. Its totient is φ = 22010294052.

The previous prime is 22011122303. The next prime is 22011122347. The reversal of 22011122321 is 12322111022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22011122321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011122321.

It is not an unprimeable number, because it can be changed into a prime (22011125321) 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 3 ways as a sum of consecutive naturals, for example, 372905 + ... + 427878.

It is an arithmetic number, because the mean of its divisors is an integer number (5502987648).

Almost surely, 2^22011122321 is an apocalyptic number.

It is an amenable number.

22011122321 is a deficient number, since it is larger than the sum of its proper divisors (828271).

22011122321 is an equidigital number, since it uses as much as digits as its factorization.

22011122321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828270.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22011122321 its reverse (12322111022), we get a palindrome (34333233343).

The spelling of 22011122321 in words is "twenty-two billion, eleven million, one hundred twenty-two thousand, three hundred twenty-one".