22231322011 has 4 divisors (see below), whose sum is σ = 22253756224. Its totient is φ = 22208887800.

The previous prime is 22231321949. The next prime is 22231322023. The reversal of 22231322011 is 11022313222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22231322011 - 2¹⁵ = 22231289243 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 22231322011.

It is not an unprimeable number, because it can be changed into a prime (22231322041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11215620 + ... + 11217601.

It is an arithmetic number, because the mean of its divisors is an integer number (5563439056).

Almost surely, 2^22231322011 is an apocalyptic number.

22231322011 is a deficient number, since it is larger than the sum of its proper divisors (22434213).

22231322011 is an equidigital number, since it uses as much as digits as its factorization.

22231322011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22434212.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22231322011 its reverse (11022313222), we get a palindrome (33253635233).

The spelling of 22231322011 in words is "twenty-two billion, two hundred thirty-one million, three hundred twenty-two thousand, eleven".