22312234121 has 4 divisors (see below), whose sum is σ = 22317130644. Its totient is φ = 22307337600.

The previous prime is 22312234111. The next prime is 22312234129. The reversal of 22312234121 is 12143221322.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9301638025 + 13010596096 = 96445^2 + 114064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22312234121 is a prime.

It is a super-3 number, since 3×22312234121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22312234129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2441420 + ... + 2450541.

It is an arithmetic number, because the mean of its divisors is an integer number (5579282661).

Almost surely, 2^22312234121 is an apocalyptic number.

It is an amenable number.

22312234121 is a deficient number, since it is larger than the sum of its proper divisors (4896523).

22312234121 is an equidigital number, since it uses as much as digits as its factorization.

22312234121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896522.

The product of its digits is 1152, while the sum is 23.

Adding to 22312234121 its reverse (12143221322), we get a palindrome (34455455443).

The spelling of 22312234121 in words is "twenty-two billion, three hundred twelve million, two hundred thirty-four thousand, one hundred twenty-one".